Smart Measurement and Monitor Units KE1 Unit structure that enables Power and Earth Leakage Monitoring with just one Unit.* Use just one Unit to implement multicircuit measurements. • Connect CT and ZCT Expansion Units for multi-circuit measurements. • Many standard features: Open phase, reversed phase, undercurrent, overcurrent, undervoltage, and overvoltage protection and RS-485 communications (Modbus and For the most recent information on Unit certification, refer to your CompoWay/F). OMRON website. • Voltage fluctuation data before and after momentary voltage Use a UL-compliant current transformer (CT) (KM20-CTF-@@@AU) for application as a UL-certified component. sags is logged in memory. Alarms can be output for momentary voltage sags as short as 25 ms (with the Momentary Voltage Sag Monitor Unit). • Expansion with DeviceNet Communications Unit to enable reading 30 words of instantaneous power in 100 ms. • Monitor operation from a computer with the Easy KM-Manager Data Collection Software. (Download it from our website.) Features Monitor Power and Earth Leakage with Just One Unit KE1-PGR1C-FLK You can monitor power to save energy and monitor earth leakage for electrical equipment all with just one Unit. You can flexibly add CT or ZCT Units to measure multiple circuits as required. There is an increasing need to detect problems in advance to protect against extensive losses from production line and production facility stoppage due to earth leakage faults. There is also a need to introduce power monitoring to save energy. There is a need to measure both earth leakage and power from a switch panel or distribution panel with only one infrastructure investment. The KE1 is the first product line in the world to respond to the need for smart multi-circuit measurements for power monitoring and earth leakage monitoring. Power Fluctuation Logging KE1-PVS1C-FLK and KE1-VSU1B-FLK Momentary voltage sags are a serious problem for precision equipment, such as semiconductor and liquid crystal manufacturing facilities. The power grid in emerging countries is often unstable, resulting in problems such as facility stoppage and failure due to momentary voltage sags. The KE1 detects momentary voltage sags and outputs an alarm in 25 ms. It also logs voltage fluctuations in the Unit’s internal memory for 1,000 ms before and after a voltage sag so that you can check for the impact of the voltage sag on quality. You can also use it for SEMI-F47 traceability information to enable effective facility maintenance. Monitor for Momentary Voltage Sags High-speed alarm output in 25 ms. Protect Motors Save Energy Monitor power for large facilities. Alarm outputs are provided for open phases, reversed phases, overcurrents, and earth leakage in power equipment. Protect Equipment Log Data Alarm output for open phases, reversed phases, overvoltages, and undervoltages. Voltage fluctuations before and after momentary power sags are recorded in the Unit’s internal memory. This data is ideal for traceability. Monitor Earth Leakage Monitor Facilities Constantly monitor insulation deterioration from cutting oil mist and equipment cleaning water. DeviceNet communications for 30 words of power information in 100 ms. Alarms for 25-ms Voltage Sags and 1 KE1 System Configuration The KE1 is built by combining four types of Units: Measurement Masters, Function Slaves, CT Expansion Slaves, and Communications Slaves. The Measurement Masters and Function Slaves can also be used for standalone operation. You can connect a Measurement Master and Slaves to save both wiring work and space. Maximum Configuration You can connect up to four Function Slaves and CT Expansion Slaves and one Communications Slave (i.e., a total of five Slaves) to one Measurement Master. You cannot connect only Function Slaves together. KE1 Unit Combination Table OK: Can be added, No: Cannot be added. Slaves Master KE1-PGR1C-FLK (Power/Earth Leakage) KE1-PVS1C-FLK (Power/Momentary Voltage Sag) KE1-VSU1B-FLK (Momentary Voltage Sag) OK OK KE1-VAU1B-FLK (Voltage/ Current) OK OK KE1-CTD8E (CT Expansion) OK OK KE1-ZCT8E (ZCT Expansion) OK No KE1-DRT-FLK (DeviceNet Communications) OK OK Note: Refer to the KM1 Product Catalog (Cat. No. N170) for details on the KM1. Model Number Structure Model Number Legend K E 1 - @ @ @ @ - @@@ 1 2 3 4 5 6 1. Basic Model Code KE 4. Number of Input Circuits Series Measurement and Monitor Units 2. Basic Model Code 1 Series Series number 3. Unit Type Code PGR PVS VSU VAU CTD ZCT DRT Unit type Power/Earth Leakage Monitor Unit Power/Momentary Voltage Sag Monitor Unit Momentary Voltage Sag Monitor Unit Voltage/Current Monitor Unit CT Expansion Unit ZCT Expansion Unit DeviceNet Communications Unit Code Blank 1 8 5. Output Form Code Blank B *1 C *2 E Output form No output Two SPST-NO relay outputs One SPST-NO output and one NPN transistor output One small-signal SPST-NO relay output *1. The KE1-VSU1B-FLK has one SPST-NO relay output and one SSR output. *2. The KE1-PVS1C-FLK has one SSR output and one NPN transistor output. 6. Communications Specification Code Blank FLK 2 Number of input circuits No input circuits 1 input circuit 8 input circuits Communications specification No communications RS-485 (Modbus and CompoWay/F) KE1 Ordering Information Main Units Model Unit type KE1-PGR1C-FLK Power/Earth Leakage Monitor Unit KE1-PVS1C-FLK Power/Momentary Voltage Sag Monitor Unit KE1-VSU1B-FLK Momentary Voltage Sag Monitor Unit KE1-VAU1B-FLK Voltage/Current Monitor Unit Power supply voltage Communications 100 to 240 VAC RS-485 CT Expansion Slave Not required.* --- Communications Slave 100 to 240 VAC RS-485 DeviceNet Unit category Measurement Master Function Slave KE1-CTD8E CT Expansion Unit KE1-ZCT8E ZCT Expansion Unit KE1-DRT-FLK DeviceNet Communications Unit * The CT and ZCT Expansion Units cannot be used in standalone operation. They must be used together with a Measurement Master Unit. Power is supplied to the CT and ZCT Expansion Units from the Measurement Master Unit. Power supply wiring is not required. Options (Order Separately) CT Input Current Transformers (CTs) Model Rated primary current KM20-CTF-5A 5A KM20-CTF-50A 50 A KM20-CTF-100A 100 A KM20-CTF-200A 200 A KM20-CTF-400A 400 A KM20-CTF-600A 600 A KM20-CTB-5A/50A Rated secondary current Installation Split-type Special output In-panel mounting (through-hole) 5 A/50 A Note: CT Cables are not included with the CTs. Current Transformers (CTs) (UL-compliant) Model Rated primary current KM20-CTF-5AU Rated secondary current Installation Special output Split-type 5A KM20-CTF-50AU 50 A KM20-CTF-100AU 100 A KM20-CTF-200AU 200 A KM20-CTF-400AU 400 A KM20-CTF-600AU 600 A Note: CT Cables are not included with the CTs. Current Transformer (CT) Cable Model Specification KM20-CTF-CB3 3-m cable Note: Use only the CT Cable specified by OMRON. ZCT Input Zero-phase Current Transformers (Compatible ZCTs) Structure Rated current 50 A 100 A 150 A 200 A 400 A 600 A 1,000 A Indoor, through-hole Through-hole Model diameter (mm) 21 OTG-L21 30 OTG-L30 ----42 OTG-L42 68 OTG-L68 82 OTG-L82 156 TG-L156 Indoor, split-type Through-hole diameter (mm) ------52 77 112 --- Model ------OTG-CN52 OTG-CN77 OTG-CN112 --- Outdoor, through-hole Through-hole diameter (mm) --30 ----------- Model --OTG-LA30W ----------- Outdoor, split-type Through-hole diameter (mm) ----36 --------- Model ----TG-CN36W --------- Current Transformer for Ground Wires Structure Rated current 2A Indoor, split-type Through-hole Model diameter (mm) 22 K6ER-CN22 3 KE1 Related Devices (Sold Separately) When Connected to a Computer Communications Interface Converters Model K3SC-10 AC100-240 K3SC-10 AC/DC24 4 Size (mm) 30 × 80 × 78 (W×H×D) Communications conversion RS-232C, USB <-> Half-duplex RS-485 Power supply voltage 100 to 240 VAC 24 VAC/DC KE1 Specifications Ratings Model Item KE1-PGR1CFLK (Power/ Earth Leakage) KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) KE1-VAU1BFLK (Voltage/ Current) KE1-CTD8E (CT Expansion) KE1-ZCT8E (ZCT Expansion) Applicable phase wiring method Single-phase two-wire, single-phase three-wire, three-phase three-wire, and three-phase four-wire Power supply Rated power supply voltage 100 to 240 VAC, 50/60 Hz --- Allowable supply voltage range 85% to 110% of rated power supply voltage --- Power supply fluctuation frequency range 45 to 65 Hz --- Power consumption Standalone: 10 VA max., Maximum connections: 14 VA max. Power interruption compensation method --- 10 VA max. Backup for 1.2 seconds min. with electric double-layer capacitor for voltage measurement only. --- Rated input voltage 100 to 480 VAC (single-phase, 2-wire): Line voltage 100/200 VAC (single-phase, 3-wire): Phase voltage/line voltage 100 to 480 VAC (3-phase, 3-wire): Line voltage 58 to 277 VAC/100 to 480 VAC (3-phase, 4-wire): Phase voltage/line voltage Rated input current for CT 5 A, 50 A, 100 A, 200 A, 400 A, or 600 A Special CTs used. Rated input current for ZCT 50 A, 100 A, 150 A, 200 A, 400 A, 600 A, or 1,000 A --- 5 A, 50 A, 100 A, 200 A, 400 A, or 600 A Special CTs used. --- 50 A, 100 A, 150 A, 200 A, 400 A, 600 A, or 1,000 A --With 5-A CT: 4 kW With 50-A CT: 40 kW With 100-A CT: 80 kW With 200-A CT: 160 kW With 400-A CT: 320 kW With 600-A CT: 80 kW Rated input power With 5-A CT: 4 kW With 50-A CT: 40 kW With 100-A CT: 80 kW With 200-A CT: 160 kW With 400-A CT: 320 kW With 600-A CT: 480 kW Rated input frequency 50/60 Hz --- Input frequency fluctuation range 45 to 65 Hz --- Input leakage current 1,000 mA Allowable input voltage 110% of rated input voltage (continuous) Allowable input current 120% of rated input current (continuous) Input --- Rated input load --- --- 1,000 mA --- --- 120% of rated current (continuous) Voltage input: 0.5 VA max. (excluding power supply) Clock --- Current input: 0.5 VA max. (for each input) --- ----- Current input: 0.5 VA max. (for each input) --- Clock setting 2012 to 2099 (Adjusted for leap years during this period.) --- Clock accuracy ±1.5 min./month (at 23°C) --- Seven-day backup with an electric double-layer capacitor (after being Clock backup period powered for at least 24 hours and when the power is interrupted at 23°C) Ambient operating temperature −10 to 55°C (with no condensation or icing) Storage temperature −25 to 65°C (with no condensation or icing) Ambient operating humidity 25% to 85% Storage humidity 25% to 85% Altitude 2,000 m max. Installation environment Overvoltage category II, pollution degree 2, measurement category II --- 5 KE1 Model Item KE1-PGR1CFLK (Power/ Earth Leakage) KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) KE1-VAU1BFLK (Voltage/ Current) KE1-CTD8E (CT Expansion) KE1-ZCT8E (ZCT Expansion) EN 61010-2-030 (IEC 61010-2-030) EN61326-1 Industrial electromagnetic environment UL61010-1 (*) UL61010-2-030 (*) Compliant All KE1 Units standards * Use a UL-compliant current transformer (CT) (KM20-CTF-@@@AU) for application as a UL-certified component. Characteristics Model Item KE1-PGR1CFLK (Power/ Earth Leakage) KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) Voltage ±1.0% FS ±1 digit The accuracy of the voltage across the Vtr is ±2.0% FS ±1 digit under the same conditions. Current ±1.0% FS ±1 digit However, the accuracy is ±2.0% FS ±1 digit for the phase-S current for a three-phase, three-wire circuit and the phase-N current for a single-phase, three-wire circuit under the same conditions. Leakage current 30 to 200 mA: ±5% rdg ±1 digit 200 to 1,000 mA: ±1%FS ±1 digit Accuracy *1 --- Frequency Power factor*2 KE1-CTD8E (CT Expansion) KE1-ZCT8E (ZCT Expansion) --- ±1.0% FS ±1 digit However, the accuracy is ±2.0% FS ±1 digit for the phase-S current for a three-phase, three-wire circuit and the phase-N current for a single-phase, three-wire circuit under the same conditions. --- 30 to 200 mA: ±5% rdg ±1 digit 200 to 1,000 mA: ±1%FS ±1 digit --- Active power and reactive power Power (active power ±2.0% FS ±1 digit (power factor = and reactive power) 1) --- Active power and reactive power ±2.0% FS ±1 digit (Power factor = 1) --- ±5.0% FS (Power factor = 0.5 to 1 to 0.5) ±0.3 Hz ±1 digit --- --- ±5.0% FS (power factor = 0.5 to 1 to 0.5) Temperature 6 KE1-VAU1BFLK (Voltage/ Current) --- --- Temperature influence*1 ±1.0% FS (percentage of the measurement value at an ambient temperature of 23°C, rated input, rated frequency, and a power factor of 1 in the operating temperature range) Frequency influence*1 ±1.0% FS (percentage of the measurement value at an ambient temperature of 23°C, rated input, rated frequency, and a power factor of 1 in the rated frequency ±5 Hz range) Influence of harmonics*1 ±0.5% FS (at ambient temperature of 23°C, error for superimposed 2nd, 3rd, 5th, 7th, 9th, 11th, and 13th harmonics for a content percentage of 30% for current and 5% for voltage of the basic wave) Low-cut current set value 0.1% to 19.9% of rated input in 0.1% increments Low-cut leakage current set value Variable in 0.1mA increments between 0.1 and 30.0 mA Sampling cycle 100 ms for measurement voltage at 50 Hz and 83.3 ms for measurement voltage at 60 Hz Insulation resistance Insulation resistance: 20 MΩ (at 500 VDC) Dielectric strength All models: Locations to which 2,000 V was applied for one minute: Between all terminals and case KE1-PGR1C-FLK: Between the power supply terminals and RS-485/transistor/relay outputs Between the power supply terminals and current/voltage/earth leakage inputs Between current/voltage/earth leakage inputs and RS-485/relay/transistor outputs KE1-PVS1C-FLK: Between the power supply terminals and RS-485/transistor/relay outputs Between the power supply terminals and current/voltage input Between current/voltage inputs and RS-485/relay/transistor outputs KE1-VSU1B-FLK: Between power supply terminals and RS-485/relay outputs Between the power supply terminals and voltage inputs Between voltage inputs and RS-485/relay outputs KE1-VAU1B-FLK: Between power supply terminals and RS-485/relay outputs Between the power supply terminals and current/voltage input Between current/voltage inputs and RS-485/relay outputs KE1-CTD8E: Between current inputs and relay outputs KE1-ZCT8E: Between earth leakage inputs and relay outputs --- 0.1% to 19.9% of rated input in 0.1% increments --- --Variable in 0.1mA increments between 0.1 and 30.0 mA KE1 Model Item KE1-PGR1CFLK (Power/ Earth Leakage) KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) KE1-VAU1BFLK (Voltage/ Current) KE1-CTD8E (CT Expansion) Vibration resistance Single-amplitude: 0.35 mm, Acceleration: 50 m/s2 Vibration: 10 to 55 Hz, 10 sweeps of 5 minutes each along 3 axes Shock resistance 150 m/s2, 3 times each in 6 directions (up/down, left/right, forward/backward) Weight Approx. 230 g Memory backup No. of writes to non-volatile memory: 1,000,000 times KE1-ZCT8E (ZCT Expansion) *1. Based on JISC1111, without special CT error, at ambient temperature of 23°C, rated input, and rated frequency. Applicable to 2nd, 3rd, 5th, 7th, 9th, 11th, and 13th harmonics. *2. Power factor formula: Power factor = Active power/Apparent power Apparent power = Model Item Event inputs KE1-PGR1CFLK (Power/ Earth Leakage) (Active power)2 + (Reactive power)2 KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) KE1-VAU1BFLK (Voltage/ Current) Number of inputs --- No-voltage inputs --- Voltage input --- Tempera- Thermistor inputs ture inApplicable puts thermistor --- --- Number of outputs One open-collector output (OUT2) --- Output capacity 30 VDC, 30 mA --- ON residual voltage 1.2 V max. --- OFF leakage current 100 μA max. Relay outputs KE1-ZCT8E (ZCT Expansion) --- Capable of supporting 7 event inputs and 1 temperature input when connected with the KM1EMU8A-FLK. Combinations Transistor outputs KE1-CTD8E (CT Expansion) --- Total power consumption pulse output Outputs one pulse when the power consumption reaches the set pulse output unit (1, 10, 100, 1k, 2k, 5k, 10k, 20k, 50k, 100k W/h). --- Alarm output Outputs an alarm based on the set alarm output threshold. --- Alarm recovery method Automatic recovery only --- Number of outputs One NO contact output (OUT1) --- Two NO contact One NO contact outputs (OUT1 One NO contact output (OUT1) output (OUT1) and OUT2) Rated load Resistance load, 250 VAC, 3 A; 30 VDC, 3 A Inductive load (cosφ = 0.4, L/R = 7 ms): 250 VAC, 1 A; 30 VDC, 1 A --- Resistance load, 250 VAC, 3 A; 30 VDC, 3 A Inductive load (cosφ = 0.4, L/R = 7 ms): 250 VAC, 1 A; 30 VDC, 1A Resistance load, 125 VAC, 3 A; 30 VDC, 3 A Mechanical life expectancy 10,000,000 operations --- 10,000,000 operations 5,000,000 operations min. Electrical life expectancy 50,000 operations min. (rated load switching frequency: 1,800 times/h) --- 50,000 operations min. (rated load 200,000 times min. (rated load switching frequency: 1,800 times/ switching frequency: 1,800 times/ h) h) Failure rate P level 5 VDC, 10 mA (at a switching frequency of 120 times/min) --- 5 VDC, 10 mA (at a switching frequency of 120 times/min) Alarm output Turns output ON or OFF based on the alarm set value. --- Turns output ON or OFF based on the alarm set value. Recovery method Automatic recovery only --- Automatic recovery only 7 KE1 Model Item Semicon ductor relay outputs KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) One MOS FET output (OUT2) KE1-VAU1BFLK (Voltage/ Current) KE1-CTD8E (CT Expansion) Number of outputs --- One MOS FET output (OUT1) Maximum load voltage --- Peak: 24 VAC/DC --- Continuous load current --- Peak: 80 mA AC/DC --- ON resistance --- 15 Ω max. --- Open-circuit leakage current --- 1 nA max. --- Alarm output --- Turns output ON or OFF based on the alarm set value. --- Recovery method --- Automatic recovery only --- Protocols KE1-ZCT8E (ZCT Expansion) --- Communications protocol setting OFF: CompoWay/F, ON: Modbus Commun Unit number setting ications RS-485 KE1-PGR1CFLK (Power/ Earth Leakage) CompoWay/F: 0 to 99, Modbus:1 to 99 When a switch operation is performed to set the protocol to Modbus when the node number is set to 0, the node number is automatically changed to 1. Communication items Refer to the KM1/KE1 Communications Manual. Sync method Start-stop --- Baud rate 9,600 bps, 19,200 bps, or 38,400 bps --- Transmission code CompoWay/F: ASCII, Modbus: Binary --- Data length CompoWay/F: 7 bits, 8 bits; Modbus: 8 bits --- Stop bits CompoWay/F: 1 bits or 2 bits Modbus: 1 bit with priority, 2 bits without priority --- Parity Even, odd, or none --- Maximum transmission distance 500 m --- Maximum number of CompoWay/F: 31, Modbus: 99 nodes --- USB USB 1.1 compliant Memory retention for power interruptions Parameter data, alarm history, logged data, and backup data Number of connect connector insertions/removals 25 times Parameter data, alarm history, logged data, backup data, and momentary voltage sag history Parameter data, alarm history, Parameter data, Parameter data, Parameter data logged data, alarm history, alarm history, and alarm and momentary and backup and logged data history voltage sag data history Protection Model Item Voltage monitoring 8 KE1-PGR1CFLK (Power/ Earth Leakage) KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) KE1-VAU1BFLK (Voltage/ Current) KE1-CTD8E (CT Expansion) KE1-ZCT8E (ZCT Expansion) Alarm threshold (overvoltage/ undervoltage) 0.0 to 12,100.0 V --- Operation characteristic ±1.0% FS ±1 digit The accuracy of the voltage across the Vtr is ±2.0% FS ±1 digit under the same conditions. --- Alarm ON delay (overvoltage/ undervoltage) 0.1 to 10.0 s --- Operating time characteristic ±0.2 s --- Alarm hysteresis (overvoltage/ undervoltage) 0.0 to 2,200.0 V --- Resetting time 0.5 s (Cannot be changed.) --- Resetting time characteristic ±0.2 s --- KE1 Model Item Current monitoring Active power monitoring Reactive power monitoring Power factor monitoring KE1-PGR1CFLK (Power/ Earth Leakage) KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) KE1-VAU1BFLK (Voltage/ Current) --- 0.0 to 6,000.0 A --- --- KE1-CTD8E (CT Expansion) KE1-ZCT8E (ZCT Expansion) Alarm threshold (overcurrent/ undercurrent) 0.0 to 6,000.0 A Operation characteristic ±1.0% FS ±1 digit However, the accuracy is ±2.0% FS ±1 digit for the phase-S current for a three-phase, three-wire circuit and the phase-N current for a single-phase, three-wire circuit under the same conditions. --- ±1.0% FS ±1 digit However, the accuracy is ±2.0% FS ±1 digit for the phase-S current for a three-phase, three-wire circuit and the phase-N current for a single-phase, three-wire circuit under the same conditions. Alarm ON delay (overcurrent/ undercurrent) 0.1 to 10.0 s --- 0.1 to 10.0 s --- Operation characteristic ±0.2 s --- ±0.2 s --- Alarm hysteresis (overcurrent/ undercurrent) 0.0 to 1,000.0 A --- 0.0 to 1,000.0 A --- Resetting time 0.5 s (Cannot be changed.) --- 0.5 s (Cannot be changed.) --- Resetting time characteristic ±0.2 s --- ±0.2 s --- Alarm thresholds (upper limit/lower limit) • 120,000,000 to 120,000,000 W --- • 120,000,000 to 120,000,000 W --- Operation characteristic ±2.0% FS ±1 digit --- ±2.0% FS ±1 digit --- Alarm ON delay (upper limit/lower limit) 0.5 to 10.0 s --- 0.5 to 10.0 s --- Operation characteristic ±0.2 s --- ±0.2 s --- Alarm hysteresis (upper limit/lower limit) 0 to 24,000,000 W --- 0 to 24,000,000 W --- Resetting time 0.5 s (Cannot be changed.) --- 0.5 s (Cannot be changed.) --- Resetting time characteristic ±0.2 s --- ±0.2 s --- Alarm thresholds (upper limit/lower limit) −120,000,000 to 120,000,000 W --- −120,000,000 to 120,000,000 W --- Operation characteristic ±2.0% FS ±1 digit --- ±2.0% FS ±1 digit --- Alarm ON delay (upper limit/lower limit) 0.5 to 10.0 s --- 0.5 to 10.0 s --- Operation characteristic ±0.2 s --- ±0.2 s --- Alarm hysteresis (upper limit/lower limit) 0 to 24,000,000 W --- 0 to 24,000,000 W --- Resetting time 0.5 s (Cannot be changed.) --- 0.5 s (Cannot be changed.) --- Resetting time characteristic ±0.2 s --- ±0.2 s --- Alarm threshold −1.00 to 1.00 --- −1.00 to 1.00 ----- Operation characteristic ±5.0% FS (Power factor = 0.5 to 1 to 0.5) --- ±5.0% FS (Power factor = 0.5 to 1 to 0.5) Alarm ON delay 0.5 to 10.0 s --- 0.5 to 10.0 s --- Operation characteristic ±0.2 s --- ±0.2 s --- Alarm hysteresis 0.00 to 1.00 --- 0.00 to 1.00 --- 9 KE1 Model Item Earth leakage monitoring Momentary voltage sag monitoring Open phase monitoring Reversed phase monitoring 10 KE1-PGR1CFLK (Power/ Earth Leakage) Earth leakage comparison value 30 to 1,000 mA KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) KE1-VAU1BFLK (Voltage/ Current) KE1-CTD8E (CT Expansion) KE1-ZCT8E (ZCT Expansion) --- 30 to 1,000 mA Operation characteristic ±5% rdg ±1 digit for 30 to 200 mA, ±1% FS ±1 digit for 200 to 1,000 mA --- ±5% rdg ±1 digit for 30 to 200 mA, ±1% FS ±1 digit for 200 to 1,000 mA Earth leakage operating time 0.1 to 20.0 s --- 0.1 to 20.0 s Operation characteristic ±0.2 s --- ±0.2 s Resetting condition 95% of operating value --- 95% of operating value Resetting time 0.5 s (Cannot be changed.) --- 0.5 s (Cannot be changed.) Momentary voltage sag detection voltage --- 0 to 480.0 V --- Allowable error in detection voltage --- ±2.5% FS ±1 digit --- Continuation time for momentary voltage sag --- Relay output operating time accuracy --- Without backup: 0.02 to 0.2 s With backup: 0.02 to 1.00 s ±5 ms --- --- Open phase detection condition (Largest error between any phase voltage and average voltage) ÷ Average voltage × 100 ≤ 85% --- Operation characteristic ±1.0% FS ±1 digit The accuracy of the voltage across the Vtr is ±2.0% FS ±1 digit under the same conditions. --- Operating time 0.1 s --- Operation characteristic ±0.2 s --- Resetting condition Non-balance ratio: Less than 13% --- Resetting time 0.5 s (Cannot be changed.) --- Resetting time characteristic ±0.2 s --- Reversed phase detection condition Change in voltage phase sequence lasts for 0.1 second or longer. --- Operating time 0.1 s --- Operation characteristic ±0.2 s --- Resetting condition Phase offset within ±45° --- Resetting time 0.5 s (Cannot be changed.) --- Resetting time characteristic ±0.2 s --- KE1 Special CTs Current Transformers (CTs) Structure Model Split-type KM20-CTF-5A KM20-CTF5AU Item Rated primary current Secondary winding Applicable frequency Insulation resistance Dielectric strength Protective element Allowable number of connections/ disconnections Mountable wire diameter Operating temperature and humidity ranges Storage temperature and humidity ranges 5A KM20-CTF50A KM20-CTF50AU KM20-CTF100A KM20-CTF100AU 50 A 100 A Through-hole KM20-CTF200A KM20-CTF200AU 200 A 3,000 turns KM20-CTF400A KM20-CTF400AU KM20-CTF600A KM20-CTF600AU KM20-CTB-5A/ 50A 400 A 600 A 5A/50 A 6,000 turns 9,000 turns 3,000 turns 10 Hz to 5 kHz Between output terminals and case: 50 MΩ min. (at 500 VDC) Between output terminals and case: 2,000 VAC for 1 minute 7.5-V clamp element 100 times 7.4 mm max. 8.5 mm max. 11 mm max. 24 mm max. 35.5 mm max. 8.4 mm max. −20 to 60°C, 85% max. (with no condensation) −30 to 65°C, 85% max. (with no condensation) Note: Operate the Special CTs at a low voltage of 600 V or less. General Specifications Item Specification Rated power supply voltage 100 to 240 VAC, 50/60 Hz Allowable voltage range 85% to 110% of rated power supply voltage Power consumption (at 6 VA max. maximum load) Current consumption (DeviceNet 45 mA max. (24 VDC) power supply) Vibration resistance Shock resistance Dielectric strength 10 to 55 Hz, 10 m/s2 for 2 hours along 3 axes Single-amplitude: 0.35 mm, Acceleration: 50 m/s2 Vibration: 10 to 55 Hz, 10 sweeps of 5 minutes each along 3 axes 2,000 V for 1 min between all terminals and case, and between power supply terminals and temperature input/RS-485 output/USB output/DeviceNet output/transistor output Insulation resistance 20 MΩ min. (at 500 VDC) Ambient operating temperature −10 to 55°C (with no condensation or icing) Ambient operating humidity 25% to 85% Ambient storage temperature −25 to 65°C (with no condensation or icing) Dimensions 45 × 90 × 110 mm (W×H×D) (excluding protrusions) Memory backup EEPROM (non-volatile memory), No. of writes: 1,000,000 Weight Approx. 170 g Current Transformer (CT) Cable Model Cable length KM20-CTF-CB3 3m Note: Use only the CT Cable specified by OMRON. 11 KE1 Special ZCTs Zero-phase Current Transformers (Compatible ZCTs) Structure Item Model Rated current Through-hole diameter Rated load Output terminal polarity Secondary connection Insulation resistance Dielectric strength Ambient operating temperature Ambient operating humidity Weight OTG-L21 50 A OTG-L30 100 A Indoor, through-hole OTG-L42 OTG-L68 200 A 400 A OTG-L82 600 A OTG-L156 1,000 A 21 30 42 82 156 68 600 VAC max, 50/60 Hz, Single-phase/three-phase Polarity (Connect CT output terminal k to terminal 5 or 7 and terminal I to terminal 6 or 8.) Terminals (with test terminals kt and lt) 100 MΩ min. (between charged metal parts and ground) 2,200 VAC at 50/60 Hz for 1min (between charged metal parts and ground) −10 to 60°C (with no icing) 45% to 85% Approx. 90 g Approx. 130 g Structure Approx. 230 g Approx. 480 g Indoor, split-type Approx. 700 g Outdoor, throughhole OTG-LA30W 100 A Item Model OTG-CN52 OTG-CN77 OTGCN112 Rated current 200 A 400 A 600 A Through-hole 52 77 112 30 diameter Rated load 600 VAC max, 50/60 Hz, Single-phase/three-phase Output terminal Polarity (Connect CT output terminal k to terminal 5 or 7 and terminal I to terminal 6 or 8.) polarity Secondary Terminals (with test terminals kt and lt) Lead wire I = 500 connection Insulation 100 MΩ min. (between charged metal parts and ground) resistance Dielectric strength 2,200 VAC at 50/60 Hz for 1min (between charged metal parts and ground) Ambient operating −10 to 60°C (with no icing) temperature Ambient operating 45% to 85% humidity Weight Approx. 1.3 kg Approx. 2.5 kg Approx. 3.5 kg Approx. 140 g Note: Operate the Special ZCTs at a low voltage of 600 V or less. Current Transformer for Ground Wires Structure Item Model Rated current Through-hole diameter Rated load Output terminal polarity Secondary connection Insulation resistance Dielectric strength Ambient operating temperature Ambient operating humidity Weight 12 Indoor, split-type K6ER-CN22 2A 22 600 VAC max, 50/60 Hz, Single-phase/three-phase Polarity (Connect CT output terminal k to terminal 5 or 7 and terminal I to terminal 6 or 8.) Lead wire I: 150, Enclosed cable: 3,000 mm 100 MΩ min. (between core and output lead wire) 1,000 VAC at 50/60 Hz for 1 min (between core and output lead wire) −10 to 60°C (with no icing) 80% max. Approx. 65 g Approx. 6.6 kg Outdoor, split-type OTG-CN36W 150 A 36 Lead wire I = 450 Approx. 650 g KE1 Nomenclature Measurement Masters, Function Slaves, and CT Expansion Slaves Horizontal connection hook DIN hook Setting switch Setting Switches There are two setting switches, one for the slave ID and one for the communications protocol. Before you make the initial settings, always set the slave ID and communications protocol. • Slave ID (Rotary Switch) 901 78 23 Link connector 456 Display Set the switch to between 1 and 4. (Do not set it to 0 or to between 5 and 9.) Do not set the same ID more than once within the same system. Only the Function Slaves and CT Expansion Slaves have a rotary switch. Display cover • Communications Protocol Switch (DIP Switch) USB port ON Link connector Communications Slave DIN hook Setting switch • Simple Assignment/Communications Protocol Switch (DIP Switch) ON Horizontal connection hook Pin 1: Not used. Pin 2 ON: Modbus OFF: CompoWay/F Link connector Display Display cover USB port Link connector Node address Pin 1 ON: Manual assignment OFF: Simple assignment Pin 2 ON: Modbus OFF: CompoWay/F • Simple Assignment Setting Turn OFF DIP switch pin 1 to set simple assignment. The setting is read only once when the power supply is turned ON. Any changes while power is ON are ignored. To change the setting, turn OFF the power supply, set the switch, and then turn ON the power supply. • Node Address Setting Set the address of the Unit as a slave on the DeviceNet network to a decimal number between 00 and 63. (Do not set addresses 64 to 99.) Set the 1s digit on the bottom rotary switch (×100) and set the 10s digit on the top rotary switch (×101). You can set any node address that is within the specified range as long as the same address is not set for another node (Master, Slave, or Configurator) on the same network. Node Address 456 901 23 78 ×101 DeviceNet connector DeviceNet Node Address Setting 456 ×100 901 23 78 * The Link Connector is provided with the Slave Units only and is not provided with the Master Unit. 13 KE1 Display KE1-PGR1CFLK (Power/ Earth Leakage) KE1-PVS1CFLK (Power/ Momentary Voltage Sag) KE1-VSU1BFLK (Momentary Voltage Sag) KE1-VAU1BFLK (Voltage/ Current) PWR ALM CT1 CT2 CONN COMM OUT1 OUT2 PWR ALM CT1 CT2 CONN COMM OUT1 OUT2 PWR ALM CONN COMM OUT1 OUT2 PWR ALM CT1 CT2 CONN COMM OUT1 OUT2 Indicator Name Color CT3 CT3 ZCT KE1-CTD8E (CT Expansion) KE1-ZCT8E (ZCT Expansion) KE1-DRTFLK (DeviceNet) PWR ALM CT1 CT2 CT3 CT4 CONN CONN CT5 CT6 CT7 CT8 PWR ALM ZCT1 ZCT2 ZCT3 ZCT4 CONN CONN ZCT5 ZCT6 ZCT7 ZCT8 PWR CONN MS COMM NS CT3 Indication Status Power is ON. PWR Power Supply Green An error has occurred. Power is not supplied. CONN Internal Bus Communications ALM Alarm COMM RS-485 Communications Yellow Red Yellow Internal bus is connected (multiple Units are connected). Internal bus is not connected (multiple Units are not connected). An alarm was detected. RS-485/USB communications are in progress. RS-485/USB communications are not in progress. CT CT Input Yellow The indicator for the relevant input lights if the current measurement value for a CT input is 2% of the rated current or higher for 10 seconds or longer. • The indicator lights for the above condition even if the current measurement value is forced to 0 by the low-cut function. ZCT ZCT Input Yellow The indicator for the relevant input lights if the earth leakage measurement value for a ZCT input is 2% of the rated current or higher for 10 seconds or longer. • The indicator lights for the above condition even if the current measurement value is forced to 0 by the low-cut function. OUT Output Yellow The indicators light according to the alarm settings for individual output terminals. Normal (DeviceNet Communications Unit is normal.) Green MS Module Status Red --- Green Network Status (DeviceNet) NS Red Not set (when I/O assignments are made with the Configurator). • Connected configuration is not set. • I/O assignments are not set. Fatal Error • Watchdog timer error • RAM error EEPROM Failure • Non-volatile memory checksum error • Non-volatile memory hardware error There is no network power supply (24 VDC). • There is no power supply to the DeviceNet Communications Unit. • A reset is in progress. • Waiting for initialization to start. The Unit is online and communications settings were completed. (The network is normal.) The Unit is online but communications settings have not been completed (waiting for connection from host). Communications error (The Unit has detected an error that indicates network communications are not possible.) • Node address duplication • Busoff was detected. Minor communications error • Communications timeout --- : Lit. 14 : Flashing. : Not lit. The Unit is offline and the power supply is OFF. • Waiting for the host to complete a node address duplication check. • There is no power supply to the DeviceNet Communications Unit. KE1 Connections Power/Earth Leakage Monitor Unit KE1-PGR1C-FLK Terminal Arrangement and I/O Configuration 11 12 9 10 P3 P0 23 24 P1 P2 21 22 Voltage inputs KE1-PGR1C-FLK 7 RS-485 communications A(−) OUT1 and OUT2: Total power consumption pulse output alarm outputs B(+) 5 6 17 3 4 15 2 13 1 Power supply voltage 19 8 RS-485 PWR ZCT K L CT3 S L CT2 S L CT1 S L 20 ZCT input 18 16 CT inputs 1 to 3 14 Terminal Functions 1 2 3 Power supply voltage (100 to 240 VAC) SPST-NO relay output 4 9 NC 17 CT-3S 10 NC 18 CT-3L 11 NC 19 ZCT-K 12 NC 20 ZCT-L 5 Transistor outputs 13 CT-1S 21 Measurement voltage input P1 6 Transistor output COM 14 CT-1L 22 Measurement voltage input P2 7 RS-485 A (−) 15 CT-2S 23 Measurement voltage input P3 8 RS-485 B (+) 16 CT-2L 24 Measurement voltage input P0 15 KE1 Wiring Diagram Examples • Single-phase, Two-wire Power supply (K) L N • Single-phase, Three-wire Power supply (K) RNT Load (L) P2 P1 ZCT Input 11 12 23 24 11 12 23 24 9 10 21 22 9 10 21 22 P3 P2 P1 KE1-PGR1C-FLK KE1-PGR1C-FLK ZCT input RS-485 communications 7 8 19 20 Transistor outputs 5 6 17 18 SPST-NO relay output 3 4 15 16 RS-485 communications 7 8 19 20 Transistor outputs 5 6 17 18 SPST-NO relay output 3 4 15 16 1 2 13 14 CT3 input CT3 input CT2 input CT1 input 1 2 13 14 Load (L) Power supply voltage • Three-phase, Three-wire CT1 input Load (L) Power supply voltage • Three-phase, Four-wire Power supply (K) RSTN Power supply (K) RST 11 12 9 10 23 24 21 22 P3 P2 P1 11 12 9 10 23 24 21 22 KE1-PGR1C-FLK KE1-PGR1C-FLK ZCT input ZCT input RS-485 communications 7 8 19 20 18 Transistor outputs 5 6 17 18 15 16 SPST-NO relay output 3 4 15 16 13 14 1 2 13 14 RS-485 communications 7 8 19 20 Transistor outputs 5 6 17 SPST-NO relay output 3 4 1 2 CT3 input CT3 input CT1 input Power supply voltage 16 P0 P3 P2 P1 Load (L) CT2 input CT1 input Power supply voltage Load (L) KE1 Power/Momentary Voltage Sag Monitor Unit KE1-PVS1C-FLK Terminal Arrangement and I/O Configuration 11 12 9 10 P3 P0 23 24 P1 P2 21 22 Voltage inputs KE1-PVS1C-FLK 7 RS-485 communications A(−) 19 8 RS-485 20 B(+) OUT2: Total power consumption pulse output alarm output 5 6 17 OUT1: Momentary voltage sag alarm output 3 4 15 Power supply voltage 1 2 13 PWR CT3 S L CT2 S L CT1 S L 18 CT inputs 1 to 3 16 14 Terminal Functions 1 2 3 Power supply voltage (100 to 240 VAC) Semiconductor relay outputs 4 9 NC 17 CT-3S 10 NC 18 CT-3L 11 NC 19 NC 12 NC 20 NC 5 Transistor outputs 13 CT-1S 21 Measurement voltage input P1 6 Transistor output COM 14 CT-1L 22 Measurement voltage input P2 7 RS-485 A (−) 15 CT-2S 23 Measurement voltage input P3 8 RS-485 B (+) 16 CT-2L 24 Measurement voltage input P0 17 KE1 Wiring Diagram Examples • Single-phase, Two-wire • Single-phase, Three-wire Power supply (K) L N Power supply (K) RNT Load (L) P1 P2 11 12 23 24 11 12 23 24 9 10 21 22 9 10 21 22 KE1-PVS1C-FLK KE1-PVS1C-FLK 8 19 20 RS-485 communications 7 Transistor outputs 5 6 17 18 Semiconductor relay outputs 3 4 15 16 CT3 input CT2 input CT1 input 1 2 13 P3 P2 P1 RS-485 communications 7 8 19 20 Transistor outputs 5 6 17 18 Semiconductor relay outputs 3 4 15 16 1 2 13 14 14 Load (L) Power supply voltage • Three-phase, Three-wire CT3 input CT1 input Load (L) Power supply voltage • Three-phase, Four-wire Power supply (K) RST 11 12 9 10 23 24 21 22 Power supply (K) RSTN P3 P2 P1 11 12 23 24 9 10 21 22 KE1-PVS1C-FLK KE1-PVS1C-FLK RS-485 communications 7 8 19 20 RS-485 communications 7 8 19 20 CT3 input CT3 input Transistor outputs 5 6 17 18 Transistor outputs 5 6 17 18 Semiconductor relay outputs 3 4 15 16 Semiconductor relay outputs 3 4 15 16 1 2 13 14 1 2 13 14 CT2 input CT1 input CT1 input Power supply voltage 18 P0 P3 P2 P1 Load (L) Power supply voltage Load (L) KE1 Momentary Voltage Sag Monitor Unit KE1-VSU1B-FLK Terminal Arrangement and I/O Configuration 11 12 9 10 P3 P0 23 24 P1 P2 21 22 Voltage inputs KE1-VSU1B-FLK RS-485 communications 7 A(−) 8 RS-485 19 20 B(+) OUT2: Momentary voltage sag alarm output 5 6 17 18 OUT1: Alarm output 3 4 15 16 2 13 14 1 Power supply voltage PWR Terminal Functions 1 2 3 Power supply voltage (100 to 240 VAC) SPST-NO relay output 4 5 Semiconductor relay outputs 6 9 NC 17 NC 10 NC 18 NC 11 NC 19 NC 12 NC 20 NC 13 NC 21 Measurement voltage input P1 14 NC 22 Measurement voltage input P2 7 RS-485 A (−) 15 NC 23 Measurement voltage input P3 8 RS-485 B (+) 16 NC 24 Measurement voltage input P0 19 KE1 Wiring Diagram Examples • Single-phase, Two-wire • Single-phase, Three-wire Power supply (K) RNT Power supply (K) 11 9 12 10 23 21 24 22 P2 P1 11 12 23 24 9 10 21 22 P3 P2 P1 KE1-VSU1B-FLK KE1-VSU1B-FLK RS-485 communications 7 8 19 20 RS-485 communications 7 8 19 20 Semiconductor relay outputs 5 6 17 18 Semiconductor relay outputs 5 6 17 18 SPST-NO relay output 3 4 15 16 SPST-NO relay output 3 4 15 16 1 2 13 14 1 2 13 14 Load (L) Power supply voltage • Three-phase, Three-wire Load (L) Power supply voltage • Three-phase, Four-wire Power supply (K) RSTN Power supply (K) RST 11 9 12 10 23 21 24 22 P3 P2 P1 11 12 9 10 24 P0 P3 21 22 P2 P1 KE1-VSU1B-FLK KE1-VSU1B-FLK RS-485 communications 7 8 19 20 RS-485 communications 7 8 19 20 Semiconductor relay outputs 5 6 17 18 Semiconductor relay outputs 5 6 17 18 SPST-NO relay output 3 4 15 16 SPST-NO relay output 3 4 15 16 1 2 13 14 1 2 13 14 Power supply voltage 20 23 Load (L) Power supply voltage Load (L) KE1 Voltage/Current Monitor Unit KE1-VAU1B-FLK Terminal Arrangement and I/O Configuration 11 12 9 10 P3 P0 23 24 P1 P2 21 22 Voltage inputs KE1-VAU1B-FLK 7 RS-485 communications A(−) 19 8 RS-485 20 B(+) 5 6 17 3 4 15 2 13 CT3 S L 18 OUT1 and OUT2: Alarm outputs 1 Power supply voltage PWR CT2 S L CT1 S L CT inputs 1 to 3 16 14 Terminal Functions 1 2 3 Power supply voltage (100 to 240 VAC) SPST-NO relay output 1 4 5 SPST-NO relay output 2 6 9 NC 17 CT-3S 10 NC 18 CT-3L 11 NC 19 NC 12 NC 20 NC 13 CT-1S 21 Measurement voltage input P1 14 CT-1L 22 Measurement voltage input P2 7 RS-485 A (−) 15 CT-2S 23 Measurement voltage input P3 8 RS-485 B (+) 16 CT-2L 24 Measurement voltage input P0 21 KE1 Wiring Diagram Examples • Single-phase, Two-wire Power supply (K) L N • Single-phase, Three-wire Power supply (K) RNT Load (L) P1 P2 11 12 23 24 11 12 23 24 9 10 21 22 9 10 21 22 KE1-VAU1B-FLK KE1-VAU1B-FLK RS-485 communications 7 8 19 20 RS-485 communications 7 8 19 20 SPST-NO relay output 5 6 17 18 SPST-NO relay output 3 4 15 16 1 2 13 14 CT3 input SPST-NO relay output 5 6 17 18 SPST-NO relay output 3 4 15 16 P3 P2 P1 CT3 input CT2 input CT1 input CT1 input 1 2 13 14 Load (L) Power supply voltage • Three-phase, Three-wire Load (L) Power supply voltage • Three-phase, Four-wire Power supply (K) RST 11 9 12 10 23 21 Power supply (K) RSTN 24 22 P3 P2 P1 11 12 23 24 P0 P3 9 10 21 22 P2 P1 KE1-VAU1B-FLK RS-485 communications 7 8 19 KE1-VAU1B-FLK 20 RS-485 communications 7 8 19 20 CT3 input CT3 input SPST-NO relay output 5 6 17 18 SPST-NO relay output 5 6 17 18 SPST-NO relay output 3 4 15 16 SPST-NO relay output 3 4 15 16 1 2 13 14 1 2 13 14 CT2 input CT1 input Power supply voltage 22 CT1 input Load (L) Power supply voltage Load (L) KE1 CT Expansion Unit KE1-CTD8E Terminal Arrangement and I/O Configuration 11 9 CT8 S L CT7 S L 12 10 23 21 CT6 S L CT5 S L 24 Measurement block 2 CT inputs 5 to 8 22 KE1-CTD8E OUT1: Alarm output 7 8 19 5 6 17 3 4 15 1 2 13 CT4 S L CT3 S L CT2 S L CT1 S L 20 Measurement block 1 18 CT inputs 1 to 4 16 14 Terminal Functions 1 NC 9 CT-7S 17 CT-3S 2 NC 10 CT-7L 18 CT-3L 11 CT-8S 19 CT-4S 12 CT-8L 20 CT-4L 3 SPST-NO relay output 4 5 NC 13 CT-1S 21 CT-5S 6 NC 14 CT-1L 22 CT-5L 7 NC 15 CT-2S 23 CT-6S 8 NC 16 CT-2L 24 CT-6L 23 KE1 Wiring Diagram Examples • Single-phase, Two-wire P1 P1 Load CT7 input 23 12 9 24 21 10 11 22 23 12 9 24 21 10 KE1-@@@1@-FLK P3 Measurement Master Unit CT6 input Load 11 Power supply (K) RN T Example for Power Measurement on Four Lines CT8 input P2 Measurement Master Unit • Single-phase, Three-wire Power supply (K) LN Example for Power Measurement on Eight Lines P2 CT7 input CT8 input CT6 input CT5 input Load 22 11 12 23 24 11 12 23 24 9 10 21 22 9 10 21 22 Load KE1-CTD8E KE1-@@@1@-FLK Load CT5 input KE1-CTD8E Load CT4 input SPST-NO relay output 7 8 19 20 7 8 19 20 5 6 17 18 5 6 17 18 3 4 15 16 3 4 15 16 1 2 13 14 1 2 13 14 CT3 input Load CT2 input Load CT1 input Load SPST-NO relay output Load Power supply voltage Load (L) * The KE1-CTD8E will not operate alone. It must be used together with a Measurement Master Unit. * The required number of CT inputs depends on the wiring method. Single-phase, two-wire: 1 input * The number of circuits that one KE1-CTD8E Unit can measure is as follows: Single-phase, two-wire: 8 circuits max. • Three-phase, Three-wire Power supply (K) RS T Example for Power Measurement on Four Lines Measurement Master Unit 9 12 10 19 20 7 8 19 20 5 6 17 18 5 6 17 18 3 4 15 16 3 4 15 16 1 2 13 14 1 2 13 14 CT4 input Load CT3 input CT2 input Load CT1 input Power supply voltage Load (L) * The KE1-CTD8E will not operate alone. It must be used together with a Measurement Master Unit. * The required number of CT inputs depends on the wiring method. Single-phase, three-wire: 2 inputs * The number of circuits that one KE1-CTD8E Unit can measure is as follows: Single-phase, three-wire: 4 circuits max. • Three-phase, Four-wire Example for Power Measurement on Two Lines Measurement Master Unit P2 Power supply (K) RS T N P3 P2 P0 CT7 input CT8 input CT6 input 11 8 P1 CT7 input P1 P3 7 23 21 24 22 11 9 12 10 KM1-PMU@A-FLK 23 21 24 CT6 input Load CT5 input 11 12 23 24 11 12 23 24 9 10 21 22 9 10 21 22 22 KM1-PMU1A-FLK KE1-CTD8E CT5 input Load KE1-CTD8E Load 7 5 SPST-NO relay output 3 1 8 6 4 2 19 17 15 13 20 18 16 14 7 5 3 1 8 6 4 2 19 17 15 13 20 18 16 14 CT4 input Load CT3 input CT2 input Load CT1 input SPST-NO relay output 7 8 19 20 7 8 19 20 5 6 17 18 5 6 17 18 3 4 15 16 3 4 15 16 1 2 13 14 1 2 13 14 Power supply voltage Power supply voltage Load (L) * The KE1-CTD8E will not operate alone. It must be used together with a Measurement Master Unit. * The required number of CT inputs depends on the wiring method. Three-phase, three-wire: 2 inputs * The number of circuits that one KE1-CTD8E Unit can measure is as follows: Three-phase, three-wire: 4 circuits max. 24 CT3 input CT2 input CT1 input Load * The KE1-CTD8E will not operate alone. Load (L) It must be used together with a Measurement Master Unit. * The required number of CT inputs depends on the wiring method. Three-phase, four-wire: 3 inputs * The number of circuits that one KE1-CTD8E Unit can measure is as follows: Three-phase, four-wire: 2 circuits max. KE1 ZCT Expansion Unit KE1-ZCT8E Terminal Arrangement and I/O Configuration ZCT inputs 7 and 8 11 ZCT8 12 23 ZCT6 24 9 21 ZCT5 22 K L ZCT7 K L 10 K K ZCT inputs 5 and 6 L L KE1-ZCT8E 7 8 19 ZCT4 20 K 5 6 17 ZCT3 18 K OUT1: Alarm output 3 4 2 L ZCT inputs 1 to 4 15 ZCT2 16 K 1 L L 13 ZCT1 14 K L Terminal Functions 1 NC 9 ZCT-7K 17 ZCT-3K 2 NC 10 ZCT-7L 18 ZCT-3L 11 ZCT-8K 19 ZCT-4K 12 ZCT-8L 20 ZCT-4L 3 SPST-NO relay output 4 5 NC 13 ZCT-1K 21 ZCT-5K 6 NC 14 ZCT-1L 22 ZCT-5L 7 NC 15 ZCT-2K 23 ZCT-6K 8 NC 16 ZCT-2L 24 ZCT-6L 25 KE1 Wiring Diagram Examples • Single-phase, Two-wire Power supply (K) LN P1 Power/Earth Leakage Measurement Master Unit P2 ZCT7 input • Single-phase, Three-wire Power/Earth Leakage P1 Measurement P3 Master Unit Load ZCT8 input Power supply (K) RN T ZCT7 input Load ZCT8 input P2 Load Load ZCT6 input ZCT6 input 11 23 12 24 11 12 23 11 Load 24 12 23 24 11 12 23 24 9 21 10 22 9 10 KE1-PGR1C-FLK 21 9 22 10 Load KE1-ZCT8E Load ZCT5 input ZCT5 input 21 22 9 10 KE1-PGR1C-FLK 21 22 Load KE1-ZCT8E Load Load ZCT4 input ZCT4 input Load 7 8 19 20 7 8 19 20 5 6 17 18 5 6 17 18 3 4 15 16 3 4 15 16 1 2 13 14 1 2 13 14 Load 7 8 19 20 7 8 19 20 5 6 17 18 5 6 17 18 3 4 15 16 3 4 15 16 1 2 13 14 1 2 13 14 ZCT3 input ZCT3 input SPST-NO relay output ZCT2 input Load Load SPST-NO relay output ZCT1 input ZCT2 input ZCT1 input Load Load Power supply voltage Load (L) * The KE1-ZCT8E will not operate alone. It must be used together with a Measurement Master Unit. * One input is required for each circuit regardless of the wiring method. * The number of circuits that one KE1-ZCT8E Unit can measure is as follows: Single-phase, two-wire: 8 circuits max. • Single-phase, Three-wire Power/Earth Leakage Measurement Master Unit Power supply (K) RS T Load P3 Load (L) * The KE1-ZCT8E will not operate alone. It must be used together with a Measurement Master Unit. * One input is required for each circuit regardless of the wiring method. * The number of circuits that one KE1-ZCT8E Unit can measure is as follows: Single-phase, three-wire: 8 circuits max. • Three-phase, Four-wire Power/Earth Leakage P1 Measurement Master Unit ZCT7 input P1 Power supply voltage ZCT8 input P2 Power supply (K) RS T N ZCT7 input Load P3 ZCT8 input P2 P0 Load Load ZCT6 input ZCT6 input 23 24 11 12 23 24 Load 11 12 23 24 11 12 23 24 9 10 21 22 9 10 21 22 21 22 9 10 KE1-PGR1C-FLK 21 22 Load KE1-ZCT8E Load ZCT5 input ZCT5 input KE1-PGR1C-FLK Load KE1-ZCT8E Load ZCT4 input Load ZCT4 input Load 7 8 19 20 7 8 19 20 5 6 17 18 5 6 17 18 3 4 15 16 3 4 15 16 1 2 13 14 1 2 13 14 Load 7 8 19 20 7 8 19 20 5 6 17 18 5 6 17 18 3 4 15 16 3 4 15 16 1 2 13 14 1 2 13 14 ZCT3 input ZCT3 input Load Load SPST-NO relay output Power supply voltage ZCT2 input ZCT1 input SPST-NO relay output Load ZCT1 input Load Load (L) * The KE1-ZCT8E will not operate alone. It must be used together with a Measurement Master Unit. * One input is required for each circuit regardless of the wiring method. * The number of circuits that one KE1-ZCT8E Unit can handle is as follows: Three-phase, three-wire: 8 circuits max. 26 ZCT2 input Power supply voltage Load (L) * The KE1-ZCT8E will not operate alone. It must be used together with a Measurement Master Unit. * One input is required for each circuit regardless of the wiring method. * The number of circuits that one KE1-ZCT8E Unit can handle is as follows: Three-phase, four-wire: 8 circuits max. KE1 DeviceNet Communications Unit KE1-DRT-FLK Terminal Arrangement and I/O Configuration KE1-DRT-FLK Terminal Functions RS-485 communications 8 7 − RS-485 1 Power supply voltage + 2 PWR Communications Connections Host B (+) A (−) B (+) Maximum transmission distance: 500 m Terminating resistance 7 8 KE1 1 KE1 A (−) B (+) 7 8 2 KE1 A (−) B (+) 7 8 Terminating resistance Power supply voltage 2 Power supply voltage 3 NC 4 NC 5 NC 6 NC 7 RS-485 B (+) 8 RS-485 A (−) Special CT Connections • Separate RS-485 cables and power lines to prevent the influence of noise. • Use a twisted-pair cable of AWG24 (cross-sectional area: 0.205 mm2) to AWG14 (cross-sectional area: 2.081 mm2). (The stripping length is 5 to 6 mm) • Do not ground the RS-485 communications cable. Failure may occur. • Connect terminating resistance (120 Ω (1/2 W)) between the positive and negative RS-485 pins on the host device and the last device (normally a KE1). When connecting terminating resistance to the host device, check the manual provided with the host device. A (−) 1 Last device • One Special CT is required to measure a single-phase, two-wire circuit. Two CTs are required to measure a single-phase, threewire circuit or three-phase, three-wire circuit. Three CTs are required to measure a three-phase, four-wire circuit. • Make sure that the ratings of the Special CTs and the Special CT setting in the KE1 are the same. • Check the directions of the power supply (K) and load (L) before making the connections. Correct measurements will not be possible if they are connected in the wrong directions. • Release the locking hook and clamp the CT on the line. Do this for each phase. Then, press the hook firmly until you hear it lock into place. • Make sure that the terminal cover on the secondary side of the CT is closed securely. • Do not ground the Load (L) Special CTs. Failure may occur. • The Special CTs have polarity. Power Locking hook supply (K) Correctly wire the K Used to secure terminal on the Special the CT with a band. CT to the S side of the KE1 Unit and the L CT secondary side terminal cover terminal on the Special CT to the L side on the KE1 Unit. • Use the Special CT Cable (KM20-CTFCB3: 3 m) to connect the Special CT. Connect the Special CT to the end with the shrinking tube. • Electric shock may occasionally occur. Always use a sheathed cable with basic insulation of 600 V or higher for the primary cable clamped by the CT. If you clamp onto a busbar or other conductive item, cover it with insulation or otherwise provide at least the required basic insulation. L K 27 KE1 Dimensions (Unit: mm) Main Units KE1-PGR1C-FLK/PVS1C-FLK/VSU1B-FLK/ VAU1B-FLK/CTD8E/ZCT8E Two, 4.3 dia. 45 19.2 102 96 110 90 KE1-DRT-FLK Two, 4.3 dia. 45 19.2 102 96 110 90 Split-type Current Transformers (CTs) KM20-CTF-50A KM20-CTF-50AU KM20-CTF-5A KM20-CTF-5AU 33 22.9 28.9 39 CT Through-hole Dimensions CT Through-hole Dimensions 25.3 25.5 10 3 7.4 3 10 8.5 R5 7.9 R7.5 R8 41.3 5.57 48 40 40.5 28 R5 9.5 7.5 KE1 KM20-CTF-200A KM20-CTF-200AU KM20-CTF-100A KM20-CTF-100AU 44.9 55.9 29.4 37.4 CT Through-hole Dimensions CT Through-hole Dimensions 3 30.5 16 35.5 R8 24 6 14.5 11 R10 24 14.2 R9 R8 53.7 75.7 46 52.5 KM20-CTF-400A/600A KM20-CTF-400A/600AU 62.5 73.5 CT Through-hole Dimensions 37 R18.5 35.5 6 35.5 R13 92.5 54 CT Through-hole Dimensions 27.6 KM20-CTB-5A/50A 38.6 49 8.4 52.8 9.05 12.95 CT Cable KM20-CTF-CB3 (Special CT cable) 3000±100 V1.25-B3A Unit end CT end VCTF 0.3×2 V1.25-N3A 30±5 50±5 29 KE1 Zero-phase Current Transformers (Compatible ZCTs) Indoor, through-hole OTG-L21 (50A) 9.3 M4 terminal screws 13.5 11 50 20 17 Installation Hole Dimensions Terminal symbols (protrude 0.3 mm) kt k l lt Nameplate Label and caution 68.5 6 Two, 5.5-dia. holes or two, M5 screw holes 64 74 21 dia. 5.2 20 64 Indoor, through-hole OTG-L30 (100A) 9.3 M4 terminal screws 11 63 54 50 20 13.5 Installation Hole Dimensions Terminal symbols (protrude 0.3 mm) 17 kt k l lt Nameplate Two, 5.5-dia. holes or two, M5 screw holes 81.5 76 6 86 30 dia. 5.2 20 76 Indoor, through-hole OTG-L42 (200A) 11 9.3 5.2 Installation Hole Dimensions 17 88 42 dia. Two, 5-dia. holes or Two, M4 screw holes 109 97 97 (installation pitch) 107 Indoor, through-hole OTG-L68 (400A) 25 11 9.3 6.1 17 118 Installation Hole Dimensions 68 dia. Two, 5-dia. holes or Two, M4 screw holes 136 131 131 (installation pitch) 143 30 31 KE1 Indoor, through-hole OTG-L82 (600A) 11 9.3 6.2 138 Installation Hole Dimensions 17 82 dia. Two, 5-dia. holes or Two, M4 screw holes 158 160 28 160 (installation pitch) 172 Indoor, through-hole OTG-L156 (1,000A) 33 156 dia. L M5 terminal screws Installation Hole Dimensions 263 Four, 8.5-dia. holes or Four, M8 screw holes 138 90 230 270 3.2 60 230 9 90 130 20 40 Indoor, split-type OTG-CN52 (200A) 52 dia. K M4 terminal screws Installation Hole Dimensions 141 79 Two, 6.5-dia. holes or Two, M6 screw holes K 170 170 30 7 200 Indoor, split-type OTG-CN77 (400A) 77 dia. K M4 terminal screws Installation Hole Dimensions 157 84 Four, 6.5-dia. holes or Four, M6 screw holes K 53 195 195 70 53 7 230 31 KE1 Indoor, split-type OTG-CN112 (600A) 112 dia. K M4 terminal screws Installation Hole Dimensions 200 Four, 6.5-dia. holes or Four, M6 screw holes 107 K 53 225 225 70 53 7 260 Outdoor, through-hole OTG-LA30W (100A) 62 Installation Hole Dimensions 73.5 30 dia. 42.5 3.5 Two, 5.5-dia. holes or Two, M5 screw holes 10.5 500 2 2 20 24 5.5 68 1.25mm VCTFK (JIS C 3306) 5 5.5 dia. 68 84 Outdoor, split-type OTG-CN36W (150A) 150 135 35 5 30 Installation Hole Dimensions 5.5 dia. 130 Two, 5.5-dia. holes or Two, M5 screw holes 45 91±1 135 36 dia. 46 5± 2 20 ± 2 45 0± 20 4 1.25mm2 VCTFK Largest Applicable Wire Sizes for CTs Power cable Model OTG-L21 OTG-L30 OTG-L42 OTG-L68 OTG-L82 OTG-L156 OTG-CN52 OTG-CN77 OTG-CN112 OTG-LA30W OTG-CN36W 32 600-V vinyl-insulated cable (IV) VVR cable Rated current Throughhole diameter 50 A 21 mm 22 mm2 14 mm2 8 mm2 5.5 mm2 30 mm 2 2 2 38 mm2 2 60 mm2 2 250 mm2 2 400 mm2 2 1,000 mm2 2 100 mm2 2 325 mm2 2 1,000 mm2 2 38 mm2 2 38 mm2 100 A 200 A 400 A 600 A 1,000 A 200 A 400 A 600 A 100 A 150 A 42 mm 68 mm 82 mm 156 mm 52 mm 77 mm 112 mm 30 mm 36 mm 2 wires 3 wires 60 mm 2 100 mm 2 400 mm 2 500 mm 2 500 mm 2 200 mm 2 500 mm 2 500 mm 60 mm 2 60 mm 2 2 wires 38 mm 2 100 mm 2 325 mm 2 500 mm 2 500 mm 2 200 mm 2 400 mm 2 500 mm 2 38 mm 2 38 mm 3 wires 38 mm 100 mm 325 mm 400 mm 1,000 mm 150 mm 400 mm 1,000 mm 38 mm 60 mm KE1 Current Transformer for Ground Wires Indoor, split-type K6ER-CN22 (2A) 22 dia. 20 VVC-0.18 × 7 cores × 2C 39 BK(l) W(k) 21 51.5 (53.65) 150 The following connection cable is included. W(k) BK(l) 5±1 3,000±30 Communications Interface Converter K3SC-10 7 Mounting Hole Dimensions for Direct Mounting Two, M4 screw holes or two 4.3 dia. holes 75 72±0.3 80 30 3 23.5 51.5 78 Note: DIN Track mounting is also possible. DIN Track PFP-100N PFP-50N Model 7.3±0.15 PFP-100N 35±0.3 4.5 15 25 10 25 25 10 15(5)* 25 27±0.15 PFP-50N 1 1000(500)* *The dimensions for the PFP-50N DIN Track are given in parenthesis. Clamp (End Plate) PFP-M Model 10 6.2 M4 × 8 pan head screws 50 1.8 PFP-M 1 1.8 35.5 35.5 11.5 1.3 10 M4 spring washer 4.8 33 KE1 Operating Procedure Workflow to Prepare for Application Initial Settings • Communications protocol and slave ID settings . . . . . . . . . . . . . . Refer to Nomenclature on page 13 • Initializing settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Implement initialization with USB communications. • Initial settings with the Setup Software . . . . . . . . . . . . . . . . . . . . . Implement the settings with USB communications or RS-485 communications. Note: 1. Apply the specified power supply voltage if you use RS-485 communications to make the settings. 2. There are no RS-485 communications terminals on CT Expansion Units or ZCT Expansion Units. Use USB communications or make the settings through the Measurement Master Unit. Connections • Use the horizontal connection hooks to connect the Unit cases to each other. • Connect the Units to each other with the link connectors. Installation • Mount the KE1 Units to a DIN Track or on a wall. Note: If you connect more than one Unit together, install them on a DIN Track. Wiring • Wire the Units starting from the bottom of the terminal block. 34 KE1 Main Functions Functions Yes: Function is supported. ---: Function is not supported. Alarm output functions Measurement functions Measurement Master Units (1 Unit max.) CT Expansion Slaves (4 Units max.) Communications Slaves (1 Unit max.) KE1-PGR1CFLK (Power/ Earth Leakage Monitor Unit) KE1-PVS1CFLK (Power/ Momentary Voltage Sag Monitor Unit) KE1-VSU1BFLK (Momentary Voltage Sag Monitor Unit) KE1-VAU1BFLK (Voltage/ Current Monitor Unit) KE1-CTD8E (CT Expansion Unit) KE1-CTD8E (ZCT Expansion Unit) KE1-DRT-FLK (DeviceNet Communications Unit) Active power Yes Yes --- --- Yes --- --- Reactive power Yes Yes --- --- Yes --- --- Power factor Yes Yes --- --- Yes --- --- Current Yes Yes --- Yes Yes --- --- Voltage Yes Yes Yes Yes --- --- --- Frequency Yes Yes Yes Yes --- --- --- Total power consumption Yes Yes --- --- Yes --- --- --- Yes Yes --- --- --- ----- Momentary voltage sag Earth leakage Yes --- --- --- --- Yes Overcurrent/undercurrent Yes Yes --- Yes Yes --- --- Overvoltage/undervoltage Yes Yes Yes Yes --- --- --- Open phase Yes Yes Yes Yes --- --- --- Reversed phases Yes Yes Yes Yes --- --- --- Data logging Other functions Function Slaves (4 Units max.) Yes Yes Yes Yes --- --- --- Setting Special CTs Yes Yes --- Yes Yes --- --- Setting CT ratios Yes Yes --- Yes Yes --- --- Setting VT ratios Yes Yes Yes Yes --- --- --- Low-cut function Yes Yes --- Yes Yes Yes --- Average count Yes Yes Yes Yes Yes Yes --- CT signal detection Yes Yes --- Yes Yes --- --- ZCT signal detection Yes --- --- --- --- Yes --- --- --- --- --- --- --- Yes DeviceNet communications Power Measurement Functions Earth Leakage Monitoring KE1-PGR1C-FLK/-PVS1C-FLK/-CTD8E The active power, reactive power, power factor, and total power consumption are measured on the circuits to measure. By combining the Units with KE1-CTD8E CT Expansion Units, you can measure up to 35 circuits. (The number of circuits that can be measured depends on the wiring methods of the circuits that are measured.) Just set the detection values in advance to detect upper and lower limits and save alarms in an alarm history in the Unit. Also, the KE1-PGR1C-FLK (Power/Earth Leakage Monitor Unit) and KE1-PVS1C-FLK (Power/Momentary Voltage Sag Monitor Unit) Measurement Masters can log various types of measurement data. (The number of days for which data can be logged depends on the logging period.) The measured power values and alarm records can be sent via communications to a computer or other host system. KE1-PGR1C-FLK/-ZCT8E Earth leakage from insulation deterioration of the circuits to monitor can be detected. By combining with KE1-ZCT8E ZCT Expansion Units, you can monitor earth leakage on up to 33 circuits. If the detected earth leakage current reaches or exceeds the preset value, the detection time and alarm type are stored in the alarm history. Alarm settings can also be made to output alarms. The measured earth leakage currents and alarm records can be sent via communications to a computer or other host system. Note: You can connect a computer on which OMRON’s EasyKM Manager is installed to constantly monitor earth leakage and earth leakage trends. Note: Do not use this function for the secondary side of an inverter. Note: You can connect a computer on which OMRON’s EasyKM Manager is installed to constantly monitor power and calculate the total demand. 35 KE1 Momentary Voltage Sag Detection KE1-PVS1C-FLK/-VSU1B-FLK If a voltage sag that conforms to SEMI-F47 continues for the specified time or longer, it is detected as a momentary voltage sag, the actual voltages before and after it are recorded in memory, and an alarm is recorded in the alarm history. Alarm settings can also be made to output alarms. If you connect a UPS or other backup power supply that is not affected by momentary voltage sags, you can output an alarm for up to 1 second after the momentary voltage sag occurs. Example: If the momentary voltage sag detection function is set to Vrs, the momentary voltage sag detection voltage is set to 170 V, and the momentary voltage sag time is set to 0.02 seconds, a momentary voltage sag is detected when the voltage between the R and S lines of the three-phase, three-wire system if the voltage drops below 170 V for the momentary voltage sag detection time or longer. The output turns ON within 5 ms of when the momentary voltage sag is detected. Normal voltage recovered. Momentary voltage sag detected. 220 V 170 V 0.02 s 50 V 0V Alarm output*1 Voltage sag level Momentary voltage sag occurs. 1s Alarm output*2 5 ms 5 ms Before momentary voltage sag A/D values (effective value conversion for 2.5 cycles) (80 values) At 60 Hz: Approx. 0.52-ms interval (0.04 s) At 50 Hz: Approx. 0.63-ms interval (0.05 s) ( 3) At 60 Hz: Approx. 0.52-ms interval (0.04 s) At 50 Hz: Approx. 0.63-ms interval (0.05 s) 150.1 V 149.7 V 150.3 V 149.5 V Effective values (64 values per cycle) Effective values (64 values per cycle) At 60 Hz: Approx. 16.7-ms interval (1.06 s) At 50 Hz: Approx. 20-ms interval (1.28 s) After momentary voltage sag A/D values (effective value conversion for 2.5 cycles) (80 values) At 60 Hz: Approx. 16.7-ms interval (1.06 s) At 50 Hz: Approx. 20-ms interval (1.28 s) 150.0 V 149.9 V 150.2 V 149.7 V Effective values (120 values averaged across 10 cycles) At 50 Hz: Approx. 200-ms interval (24 s) At 60 Hz: Approx. 166-ms interval (20 s) 150.0 V *1. With a backup power supply. *2. Without a backup power supply. *3. Data extraction from a PLC. 150.1 V Voltage/Current Monitoring Overcurrents/Undercurrents KE1-PGR1C-FLK/-PVS1C-FLK/-VSU1B-FLK/-VAU1B-FLK/-CTD8E Note: 1. The KE1-VSU1B-FLK can monitor only voltages. 2. The KE1-CTD8E can monitor only currents. The circuit is monitored for overvoltages, undervoltages, overcurrents, and undercurrents. With single-phase circuits with three wires or more, you can detect if the voltage or current for any of the phases exceeds a set value. Detection dates and alarm types are recorded in the alarm history. Alarm settings can also be made to output alarms. Overvoltages/Undervoltages Overvoltage alarm threshold Overvoltage reset value Voltage 1 Input Voltage 2 Voltage 3 Undervoltage alarm threshold Alarm indicator 36 Overcurrent alarm threshold Overcurrent reset value Current 1 Input Current 2 Current 3 Undercurrent alarm threshold Alarm indicator Undercurrent reset value Lit. Lit. Open Phase Detection KE1-PGR1C-FLK/-PVS1C-FLK/-VSU1B-FLK/-VAU1B-FLK The voltage balance on three-phase, three-wire circuits or threephase, four-wire circuits is monitored to detect open phases. An open phase is detected if the following open phase detection condition is met for any of the phases. Alarm settings can also be made to output alarms. Undervoltage reset value (Largest error between any phase voltage and the average voltage) Lit. Lit. Average voltage × 100 ≤ 85% KE1 Three-phase Reverse Phase Detection Alarm Output Time Charts 1. KE1-PGR1C-FLK/-PVS1C-FLK/-VSU1B-FLK/-VAU1B-FLK The phase sequence on three-phase, three-wire circuits or threephase, four-wire circuits is monitored to detect reversed phases. Alarm settings can also be made to output alarms. Upper limit threshold Hysteresis Alarm Outputs Hysteresis Lower limit threshold Alarm output support depends on the Unit. Refer to Functions on page 35. You can set alarm outputs for the detection functions. You can assign alarm outputs to relay or transistor outputs to output signals. For a momentary voltage sag alarm, you can assign the alarm to a semiconductor relay output to output an alarm. You can set an ON delay to delay the alarm output signal. You can set hysteresis to help prevent chattering. You can set alarm outputs for the detection functions that are given in the following table. Detection function Alarm type Momentary voltage sag Momentary voltage sag alarm Earth leakage Earth leakage alarm Active/reactive power Power factor Voltage monitoring Current monitoring Hysteresis Setting Upper limit alarm detection Lower limit alarm detection Upper limit alarm output Lower limit alarm output 2. ON Delay Setting Upper limit threshold Lower limit threshold Upper limit alarm Upper limit alarm detection Lower limit alarm Lower limit alarm detection Power factor alarm ON delay status Overvoltage alarm Upper limit alarm output Undervoltage alarm Lower limit alarm output *1 *1 Overcurrent alarm Undercurrent alarm Open phase Open phase alarm Reversed phases Reverse phase alarm Saving Data KE1-PGR1C-FLK/-PVS1C-FLK/-VSU1B-FLK/-VAU1B-FLK/-CTD8E/-ZCT8E Four types of data is saved in the Unit’s memory: backup data, logging data, a momentary voltage sag detection history, and an alarm history. The following table gives the measurement data that is saved, when the data is saved, and how long the data is saved. Name Measurement data Saved when Number of records/save period Reading method Backup data Total active power consumption Total regenerated energy Total reactive power consumption 5 min Logging data Various types of total power consumption Voltages Currents Earth leakage currents Power Power factor 2 days, 4 days, 12 days, 5 min, 10 min, 30 min, 1 h, 2 24 days, 49 days, 147 days, h, 6 h, 12 h, or 24 h 294 days, or 588 days RS-485 communications (*1) Momentary voltage sag detection history Momentary voltage sag occurrence date and time Voltage measurement values before and after occurrence At momentary voltage sag detection 8 occurrences per condition (4 conditions max.) Provided tool (KM1_KE1-Setting) (*3) RS-485 communications (*1) Alarm history Date and time of occurrence 5 min (*2) for alarms for trip factors 20 alarms Provided tool (KM1_KE1-Setting) (*3) RS-485 communications (*1) --- RS-485 communications (*1) *1. Separate software must be created to read the data. For details, refer to the Model KM1/KE1 Smart Power Monitor Communication Manual for Smart Measurement and Monitoring Instrument. *2. After the alarms are reset, alarms are saved every 5 minutes starting from 0 hours on the Unit’s clock. *3. For details, refer to KM1/KE1- Setting Tool. 37 KE1 Special CTs KE1PGR1CFLK (Power/ Earth Leakage) KE1KE1KE1PVS1CKE1KE1VSU1BVAU1BFLK CTD8E ZCT8E FLK (MoFLK (Power/ (CT Ex- (ZCT Exmentary (Voltage/ Momenpansion) pansion) Voltage Current) tary VoltSag) age Sag) Yes Yes Yes Yes Yes No Yes: Setting, No: No setting Set the Special CT to use. The Special CTs are listed below. (KE1-PGR1C-FLK, KE1-PVS1C-FLK, KE1-VAU1B-FLK, or KE1CTD8E) Set the CT ratio if you use a commercially available standard CT. You can combine one of the following CTs with a standard CT to measure currents that are 600 A or higher. KM20-CTF-5A KM20-CTF-5AU KM20-CTF-50A KM20-CTF-50AU KM20-CTF-5/50A Setting VT Ratios Split-type CTs CT model KE1-PGR1C-FLK/-PVS1C-FLK/-VSU1B-FLK/-VAU1B-FLK Set the VT ratio if you use a commercially available VT. You can use commercially available VTs to measure voltages that are higher than the voltage ratings. Rating KM20-CTF-5A 5A KM20-CTF-50A 50 A KM20-CTF-100A 100 A KM20-CTF-200A 200 A KM20-CTF-400A 400 A KM20-CTF-600A 600 A Low-cut Current and Earth Leakage Lowcut Current KE1-PGR1C-FLK/-PVS1C-FLK/-VAU1B-FLK/-CTD8E/-ZCT8E You can force the measurement value to 0 A if the current flow is lower than the set value. The effective value is used for detection, so inputs with high crest values, such as for noise, can be cut. Split-type CTs (UL-compliant) CT model Rating KM20-CTF-5AU 5A Average Count KM20-CTF-50AU 50 A KM20-CTF-100AU 100 A KM20-CTF-200AU 200 A KM20-CTF-400AU 400 A KE1-PGR1C-FLK/-PVS1C-FLK/-VSU1B-FLK/ -VAU1B-FLK/-CTD8E/-ZCT8E You can average measurement values to stabilize them. You can average active power values, reactive power values, power factors, currents, and voltages. KM20-CTF-600AU 600 A CT and ZCT Signal Detection Through-hole (panel-installed) CTs CT model KE1-PGR1C-FLK/-PVS1C-FLK/-VAU1B-FLK/-CTD8E/-ZCT8E An indicator is lit then a signal from a CT or ZCT is detected so that you can confirm connection status and signal status. An indicator lights for the following condition. • When the signal input is 2% or higher of the rated current for 10 seconds or longer. Rating KM20-CTB-5A/50A 5 A/50 A CT Ratios KE1PGR1CFLK (Power/ Earth Leakage) KE1KE1KE1PVS1CKE1KE1VSU1BVAU1BFLK CTD8E ZCT8E FLK (MoFLK (Power/ (CT Ex- (ZCT Exmentary (Voltage/ Momenpansion) pansion) Voltage Current) tary VoltSag) age Sag) Yes Yes No Yes Yes No Yes: Setting, No: No setting Standard CT with 5-A secondary output 5A Special CT Use one of the following. KM20-CTF-5A KM20-CTF-5AU KM20-CTF-50A KM20-CTF-50AU KM20-CTB-5A/50A 1000 A Time KE1-PGR1C-FLK/-PVS1C-FLK/-VSU1B-FLK/-VAU1B-FLK The time is used for timestamps for measurement data and the alarm history. You can set a year between 2012 and 2099 (adjusted for leap years) and the data is backed up for power interruptions lasting up to 7 days. Initialization You can set the CT ratio for a standard CT to measure currents that are higher than the ratings of the Special CTs. If you combine Special CTs with previous installed standard CTs, set the CT ratio of the standard CTs. To use a Special CT with a previously installed standard CT, combine it with the KM20-CTF5A or KM20-CTF-5AU, or combine it with the KM20-CTB-5A/50A (5 A on primary side). 38 Setting CT Ratios KE1-PGR1C-FLK/-PVS1C-FLK/-VSU1B-FLK/ -VAU1B-FLK/-DRT-FLK/-CTD8E/-ZCT8E The following table gives the types of initialization that you can perform. The previous data cannot be recovered after initialization. Initialized item Initialized data Initialize maximum/ minimum values Initializes the maximum and minimum values. Initialize total power consumptions Initializes the backup data. Initialize measurement log Initializes the items that are to be logged Initialize alarm history Initializes the alarm history. Initialize settings Initializes all parameters except for the Time Setting parameter. Initialize all Initializes all parameters except for the Time Setting parameter. KE1 KE1 Safety Precautions ● Be sure to read the precautions for all E5CC/E5EC/E5AC/E5DC models in the website at: http://www.ia.omron.com/. Warning Indications CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage. Precautions for Safe Use Supplementary comments on what to do or avoid doing, to use the product safely. Precautions for Correct Use Supplementary comments on what to do or avoid doing, to prevent failure to operate, malfunction or undesirable effect on product performance. Meaning of Product Safety Symbols Used for general CAUTION, WARNING, or DANGER precautions for which there is no specified symbol. (This symbol is also used as the alerting symbol, but shall not be used in this meaning on the product.) Used for general mandatory action precautions for which there is no specified symbol. Used to warn of the risk of explosion under specific conditions. Used to warn of the risk of electric shock under specific conditions. Used to indicate prohibition when there is a risk of minor injury from electrical shock or other source if the product is disassembled. CAUTION Property damage may occasionally occur due to fire. Tighten terminal screws to the specified tightening torque. The recommended tightening torque is 0.69 to 0.88 N·m. Confirm that the screws are straight (i.e., not at an angle) after tightening them. Minor or moderate bodily harm or property damage may occasionally occur due to explosion. Do not use the Units near inflammable or explosive gas. Destruction or rupture may occasionally occur. Make sure that the power supply voltages and loads are within specifications and ratings. Destruction or rupture may occasionally occur. The voltage input circuit and CT secondary circuit are not isolated. If a Special CT is grounded, incorrect wiring will short-circuit the voltage input and the secondary circuit of the CT. To prevent failure, do not ground a Special CT or ZCT. The Power Monitor uses a Special CT or ZCT. Therefore, correct measurements can be made even if the CT or ZCT is not grounded. Electric shock may occasionally occur. Always turn OFF the power supply before connecting CTs. Electric shock may occasionally occur. Do not touch any of the terminals while the power is being supplied. Electric shock may occasionally occur. Always use a sheathed cable with basic insulation or better for the primary cable clamped by the CT. If you clamp onto a busbar or other conductive item, cover it with insulation or otherwise provide at least the required basic insulation. Electrical shock, minor injury, fire, or equipment malfunction may occasionally occur. Do not attempt to disassemble, modify, or repair any Unit. Precautions for Safe Use The following items must be observed to prevent failure to operate and malfunctions of the Units and to prevent adverse effects on performance and functions of the Units. 1. Do not use, store, or transport the Units in the following locations. • Locations that are greatly affected by vibration or shock • Unstable locations • Locations where the specified range of temperature or humidity would be exceeded • Locations that are subject to rapid changes in temperature or humidity where condensation or icing may occur • Locations that are subject to direct sunlight. • Outdoors or locations that are subject to wind or rain • Locations that are affected by static electricity or noise • Locations that are subject to water, oil or saltwater. • Locations that are subject to corrosive gas (particularly sulfide or ammonia gas) • Locations that are subject to dust or iron powder • Locations that are affected by electric or magnetic fields 2. When you install DIN tracks, make sure that the screws are tightened securely. Mount the Units securely to the DIN Track. If any Units are loose, vibration or shock can cause the DIN Track, Units, or wires to become disconnected. 3. Use DIN Tracks with a width of 35 mm (OMRON PFP-50N/-100N). 4. Use crimp terminals that are suitable for M3.5 screws to wire the Units. 5. Check the specifications and wiring to be sure there are no mistakes before you turn ON the power supply. 6. Read and understand the Unit manuals before attempting to install, use, or maintain the Units. Electric shock, injury, accidents, failure, or malfunction may occur. 7. Install and suitably label a switch or circuit breaker that complies with relevant requirements of IEC 60947-1 and IEC 60947-3 so that the operator can immediately turn OFF the power supply. 8. Understand the manuals when you set the Units. 9. Install the Units separated as far as possible from devices with strong high-frequency noise or devices that generate surge. 10.Touch grounded metal to discharge any static electricity before touching the Units. 11.To prevent inductive noise, wire the lines connected to the Units separately from power lines carrying high voltages or currents. Do not wire in parallel with or on the same cable as power lines. Other measures for reducing noise include running lines in separate ducts and using shields. 12.Do not install the Units near sources of heat, such as devices with coils or windings. 13.Do not allow metal objects, conductors, or cuttings from 39 KE1 installation work to enter the Units. 14.Do not use solvents, such as paint thinners, to clean the Units. Use commercially available alcohol instead. 15.Use a power supply voltage and wires with suitable specifications for the control power supply and the power supply for inputs and other parts of the system. Failure, burning, or electrical shock may result. 16.If you install a Unit on a wall, install it so that the screws are not loose. If any Units are loose, vibration or shock may cause the Unit or wires to become disconnected. 17.If you use more than one Unit together, slide them together until the horizontal connection hooks audibly lock in place. 18.If you mount the Units on DIN Track, slide them until the DIN hooks audibly lock in place. 19.Use only the Special CTs, Special ZCTs, and Special CT Cable specified by OMRON. Special CTs Split-type KM20-CTF-5A KM20-CTF-50A KM20-CTF-100A KM20-CTF-200A KM20-CTF-400A KM20-CTF-600A Throughhole KM20-CTB-5A/50A For ground line K6ER-CN22 (with cable) Special ZCTs Split-type Throughhole OTG-CN52 OTG-CN77 OTG-CN112 OTG-L21 OTG-L30 OTG-L42 OTG-L68 OTG-L82 OTG-L156 OTG-CN36W OTG-LA30W Special CT Cable: KM20-CTF-CB3 (3 m) (This Cable can also be used with the Special ZCTs.) 20.Do not use the Units for measurement on the secondary side of an inverter. 21.Do not block the ventilation holes in or the areas around the Units to ensure proper dissipation of heat. 22.Check all terminal numbers before wiring. Do not connect anything to unused terminals. 23.The Units are a Class A products (for use in industrial environments). In residential environment areas, they may cause radio interference. If they cause radio interference, the user may be required to take adequate measures to reduce interference. 24.Use the Special CTs and Special ZCTs at a low voltage of 600 V or less. Installation Precautions Maintaining Product Life Use the KE1 within the following temperature and humidity ranges. Temperature: −10 to 55°C (with no icing or condensation) Humidity: 25% to 85% Do not let the ambient temperature around the Units exceed 55°C. (This is not the ambient temperature around the panel.) Some of the electronic components used in the Units have limited service lives. The life of these components depends on the ambient temperature. The service lives will be shorter at higher temperatures and longer at lower temperatures. The life of the Units can thus be extended by lowering the internal temperature. If more than one KE1 Unit is mounted side by side or top to bottom, you must consider using forced cooling, such as fans that circulate air around the Units. Noise Countermeasures To prevent inductive noise, wire the lines connected to the terminal block on the Units separately from power lines carrying high voltages or currents. Do not wire in parallel with or on the same cable as power lines. Other measures for reducing noise include running lines in separate ducts and using shields. Attach surge absorbers or noise filters to nearby equipment that generates noise (particularly equipment with a high inductance component, such as motors, transformers, or magnetic coils). Install the Units as far as possible away from devices with strong highfrequency noise (such a high-frequency welders or sewing machines) or devices that generate surge. 40 Precautions for Correct Use 1. Make sure that all parameters are set suitably for the monitor targets. 2. Do not pull on the cables. 3. When discarding the Units, dispose of them according to all local laws and ordinances as they apply. Dispose of the Units as industrial waste. 4. When using the Units in an Overvoltage Category III environment, externally install varistors between the power supply and voltage measurement inputs to the Units. MEMO 41 MEMO 42 Terms and Conditions Agreement Read and understand this catalog. Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. (b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. See http://www.omron.com/global/ or contact your Omron representative for published information. Limitation on Liability; Etc. OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. Suitability of Use. Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases. NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. Performance Data. Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. Change in Specifications. Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. Errors and Omissions. Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. OMRON Corporation Industrial Automation Company Authorized Distributor: Tokyo, JAPAN Contact: www.ia.omron.com Regional Headquarters OMRON EUROPE B.V. Wegalaan 67-69-2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS LLC One Commerce Drive Schaumburg, IL 60173-5302 U.S.A. Tel: (1) 847-843-7900/Fax: (1) 847-843-7787 OMRON ASIA PACIFIC PTE. LTD. No. 438A Alexandra Road # 05-05/08 (Lobby 2), Alexandra Technopark, Singapore 119967 Tel: (65) 6835-3011/Fax: (65) 6835-2711 OMRON (CHINA) CO., LTD. Room 2211, Bank of China Tower, 200 Yin Cheng Zhong Road, PuDong New Area, Shanghai, 200120, China Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200 © OMRON Corporation 2013 All Rights Reserved. In the interest of product improvement, specifications are subject to change without notice. CSM_5_3_0316 Printed in Japan Cat. No. N173-E1-01 0813 (0813)