Monitoring Relays 1-Phase True RMS AC/DC Over and Under Current Types DIC01, PIC01 DIC01 PIC01 Product Description DIC01 and PIC01 are precise TRMS AC/DC over+under, over+over or under+under current and voltage (selectable by DIP-switch) monitoring relays. DIC01 can perform also DC plus/minus measurement by short circuiting pins Z3 and Y1. The devices can be connected to the MI or MP and A82 or E82 current transformers. Both relays have two individual set levels with their own • TRMS AC/DC over + under, over+over, under+under current and voltage monitoring relays • DC process signal plus/minus monitoring relay (DIC01) • Selection of measuring range by DIP-switches • Adjustable current and voltage on relative scale • Adjustable hysteresis on relative scale • Separately adjustable delay functions (0.1 to 30 s) • Programmable latching or inhibit at set level • Output: 1 or 2 x 8 A SPDT relay N.D. or N.E. selectable • For mounting on DIN-rail in accordance with DIN/EN 50 022 (DIC01) or plug-in module (PIC01) • 45 mm Euronorm housing (DIC01) or 36 mm plug-in module (PIC01) • LED indication for relay(s), alarm and power supply ON • Galvanically separated power supply Ordering Key time delay. Only for DIC01 each set level can work with a single SPDT relay. Owing to the built-in latch function, the ON-position of the relay output can be maintained. Inhibit function can be used to avoid relay operation when not desired (maintenance, transitions). The LED's indicate the state of the alarm and the output relays. Housing Function Type Item number Output Power supply Range DIC 01 D B23 AV0 Type Selection Mounting Output Supply: 24 VDC Supply: 24/48 VAC Supply: 115/230 VAC DIN-rail Plug-in 2 x SPDT SPDT DIC 01 D 724 AV0 PIC 01 C 724 AV0 DIC 01 D B48 AV0 PIC 01 C B48 AV0 DIC 01 D B23 AV0 PIC 01 C B23 AV0 Input Specifications Input Current level Voltage level DC levels (DIC01 only) Current ranges 0.5 to 5 mA AC/DC 2 to 20 mA AC/DC -5 to 5 mA DC (DIC01 -20 to 20 mA DC only) Max. current for 1 s Voltage ranges 0.1 to 1 V AC/DC 1 to 10 V AC/DC 0.4 to 4 Vp AC -1 to 1 VDC (DIC01 -10 to 10 VDC only) Max. voltage for 1 s } } DIC01: Terminals Y1, Y2 PIC01: Terminals 6, 7 DIC01: Terminals Y1, Y3 PIC01: Terminals 5, 7 Connecting terminals Z3, Y1 Internal resis. Max. curr. 50 Ω 35 mA 50 Ω 55 mA 50 Ω 35 mA 50 Ω 55 mA 100 mA Internal resis. Max. volt. > 10 kΩ 7V > 10 kΩ 20 V > 10 kΩ 100 V > 10 kΩ 7V > 10 kΩ 20 V 100 V Specifications are subject to change without notice (21.10.00) CT ranges MI and MP ranges (0.4 to 4 Vp input) 1-ph.: 3-ph.: MI 5 MP 3005 MI 20 MP 3020 MI 100 MP 3100 MI 500 MP 3500 A82 ranges (2 to 20 mA input) A82-10/20 25 A82-10/20 50 A82-10/20 100 A82-10/20 250 A82-10/20 500 E82-20 ranges (2 to 20 mA input) E82-20 25 E82-20 50 Note: The input voltage cannot raise over 300 VAC/DC with respect to ground (PIC01 only) AAC rms Max. curr. 0.5 to 5 A 2 to 20 A 10 to 100 A 50 to 500 A 20 AAC 50 AAC 250 AAC 750 AAC 2.5 to 25 A 5 to 50 A 10 to 100 A 25 to 250 A 50 to 500 A 30 AAC 60 AAC 120 AAC 300 AAC 600 AAC 2.5 to 25 A 5 to 50 A 50 AAC 100 AAC 1 DIC01, PIC01 Input Specifications (cont.) Output Specifications Note: MP 3... current transformers not suitable for under current measurements due to the output signal of the device (see data sheet) Contact input DIC01 PIC01 Disabled Enabled Latch disable Output Rated insulation voltage Contact ratings (AgSnO2) Resistive loads AC 1 DC 12 Small inductive loads AC 15 DC 13 Mechanical life Electrical life Terminals Z1, Y1 Terminals 8, 9 > 10 kΩ < 500 Ω > 500 ms 1 or 2 x SPDT relays 250 VAC µ 8 A @ 250 VAC 5 A @ 24 VDC 2.5 A @ 250 VAC 2.5 A @ 24 VDC ≥ 30 x 106 operations ≥ 105 operations (at 8 A, 250 V, cos ϕ = 1) ≤ 7200 operations/h Operating frequency Dielectric strength ≥ 2 kVAC (rms) Dielectric voltage Rated impulse withstand volt. 4 kV (1.2/50 µs) Supply Specifications Power supply Rated operational voltage through terminals: A1, A2 or A3, A2 (DIC01) 2, 10 or 11, 10 (PIC01) 724: B48: B23: Overvoltage cat. III (IEC 60664, IEC 60038) 24 VDC ± 20%, insulated 24/48 VAC ± 15% 45 to 65 Hz, insulated 115/230 VAC ± 15% 45 to 65 Hz, insulated Dielectric voltage Supply to input Supply to output Input to output Rated operational power AC DC DC supply 2 kV 4 kV 4 kV AC supply 4 kV 4 kV 4 kV 5 VA 3W General Specifications Power ON delay Reaction time Alarm ON delay Alarm OFF delay Accuracy Temperature drift Delay ON alarm Repeatability Indication for Power supply ON Alarm ON Output relay ON 1 s ± 0.5 s or 6 s ± 0.5 s (input signal variation from -20% to +20% or from +20% to -20% of set value) < 100 ms < 100 ms (15 min warm-up time) ± 1000 ppm/°C ± 10% on set value ± 50 ms ± 0.5% on full-scale LED, green LED, red (flashing 2 Hz during delay time) 1 or 2 x LED(s), yellow Environment Degree of protection Pollution degree Operating temperature Storage temperature Housing dimensions Din-rail version Plug-in version Weight Screw terminals Tightening torque CE-Marking (EN 60529) IP 20 3 (DIC01), 2 (PIC01) -20 to 60°C, R.H. < 95% -30 to 80°C, R.H. < 95% 45 x 80 x 99.5 mm 36 x 80 x 87 mm Approx. 250 g Max. 0.5 Nm acc. to IEC 60947 Yes Mode of Operation DIC01 and PIC01 monitor both AC and DC current and voltage. DIC01 can also monitor positive and negative DC voltage connecting terminals Y1 and Z3. Example 1 (no contact input - under+over voltage - 2 x SPDT N.D. relays (1 x SPDT for PIC01) - TRMS) DIC01: One relay operates when the voltage drops below the under voltage set point for more than the respective delay time. It releases when 2 the voltage exceeds the set level plus the set hysteresis. The other relay operates when the voltage exceeds the over voltage set point for more than the respective delay time. It releases when the voltage drops below the set level minus hysteresis. PIC01: The relay operates when the voltage drops below the under voltage set level for more than the respective set delay time or when it exceeds the over voltage set level for more than the relative set delay time. The relay releases when the voltage exceeds the under voltage set level plus hysteresis and Specifications are subject to change without notice (21.10.00) DIC01, PIC01 Mode of Operation (cont.) it drops below the over voltage set level minus hysteresis (the hysteresis is the same for both set levels). Example 2 (latch enable active - under+under current - 2 x SPDT relays (1 x SPDT for PIC01) - TRMS) DIC01: Each relay operates and latches when the current drops below the respective set level for more than the respective delay time. Provided that the current has exceeded the respective set level plus hysteresis, each relay releases when the contact input’s connection is interrupted. PIC01: The relay operates when the current drops below the higher set level for more than the respective delay time. Provided that the current has exceeded the higher set level plus hysteresis the relay releases when the contact input’s connections is interrupted. Note Different delay times can be used for appropriate reaction according to the set points. Example 3 (inhibit enable active - over+over current with MI CT - DPDT relay (SPDT for PIC01) - TRMS) Provided that the contact input’s connection is interrupted, the relay operates when the current flowing in the MI CT exceeds the lower set level for more than the respective delay time. It releases when the current drops below the lower set level minus hysteresis or voltage drops below the under voltage set point for more than the respective delay time. It releases when the voltage exceeds the set level plus the set hysteresis. The other relay operates when the voltage exceeds the over voltage set point for more than the respective delay time. It releases when the voltage drops below the set level minus hysteresis. when the contact input’s pins are connected. Example 4 (inhibit enable active - over+over current with A82-10 CT DPDT relay (1 x SPDT for PIC01) - TRMS Provided that the contact input’s connection is interrupted, the relay operates when the current flowing in the A82-10 CT exceeds the lower set level for more than its delay time. It releases when the current drops below the lower set level minus hysteresis or when the contact input’s pins are connected. In this case the spare front label has to be placed on the device for proper level adjustment. Note When the inhibit contact is opened, if the input signal is already in alarm position, the delay time needs to elapse before relay(s) activation. Example 5 (DIC01 only) (no contact input - under+over voltage - 2 x SPDT N.D. relays - plus/minus DC One relay operates when the Function/Range/Level and Time Delay Setting Selection of measuring range: The selection between current and voltage is automatically selected through the input connectors. TRMS or positive/negative DC monitoring selectable by short-circuiting terminals Y1 and Z3 (DIC01 only). DIP-switch selector (1 to 2) Selection of function: DIP-switch selector (3 to 6 and 1 A, 2 A) 3 Relay(s) de-energized in normal condition. Relay(s) energized in normal condition. 4 12 ON 0.5 to 5 mA AC/DC -5 to 5 mA DC 0.1 to 1 V AC/DC -1 to 1 VDC 2 to 20 mA AC/DC -20 to 20 mA DC 0.4 to 4 Vp AC 1 to 10 V AC/DC -10 to 10 V DC Power ON delay 1 ± 0.5 s Power ON delay 6 ± 0.5 s Set point 1 over voltage/current monitoring relay. The alarm condition occurs when voltage/current input is over the set point value. Set point 1 under voltage/current monitoring relay. The alarm condition occurs when voltage/current input is under the set point value. 1A 5 Contact input as latch function enable. When the contact is closed the latch function is activated. The reset of the latch condition occurs when the contact is open or by power down. Contact input as inhibit of alarm enable. When the contact is closed the relay remains in normal position even if the alarm condition occurs. Specifications are subject to change without notice (21.10.00) 2A 6 ON Set point 2 over voltage/current monitoring relay. The alarm condition occurs when voltage/current input is over the set point value. ON 2 x SPDT relays (DIC01) 1 x DPDT relay (PIC01) Selection of level, time delay and hysteresis: Upper knob: Setting of hysteresis on relative scale: 0 to 30% on set value. Centre knobs: Current level setting on relative scale: 10 to 110% on full scale. Lower knobs: Setting of delay on alarm time on absolute scale (0.1 to 30 s). Set point 2 under voltage/current monitoring relay. The alarm condition occurs when voltage/current input is under the set point value. 3 DIC01, PIC01 Wiring Diagrams Example 1 L Z1 PE Example 1 24 VDC (+) 48/230 VAC 24/115 VAC Y1 µ A1 A3 16 L µ 18 26 2 28 I U Y3 Y2 24 VDC (+) 48/230 VAC 24/115 VAC PE 7 A2 Z3 15 10 6 Latch/inhibit enable µ A1 A3 16 Y3 24 VDC (+) 48/230 VAC 24/115 VAC L µ 18 26 2 28 I U Y2 PE A2 Z3 15 7 5 25 Latch/inhibit enable 10 6 Example 3 µ A1 A3 16 L 2 28 PE PE 7 Latch/inhibit enable A2 Z3 15 3 5 25 10 6 24 VDC (+) 48/230 VAC 24/115 VAC Y1 Y2 Example 4 24 VDC (+) 48/230 VAC 24/115 VAC Latch/inhibit enable Z1 A82-10 A1 µ A3 16 L µ 18 26 28 2 I U A82-10 PE 7 Yellow Y3 A2 Z3 15 Red 25 N (-) Black Example 5 1 N (-) L Black 5 µ 11 4 3 I U 6 10 1 N (-) 24 VDC (+) 48/230 VAC 24/115 VAC L Z1 PE 4 MI... Y3 Example 4 PE µ 11 I U N (-) Red 1 24 VDC (+) 48/230 VAC 24/115 VAC µ 18 26 I U Y2 Yellow 3 Latch/inhibit enable L Y1 4 N (-) 24 VDC (+) 48/230 VAC 24/115 VAC Z1 MI... µ 11 I U N (-) Example 3 1 Latch/inhibit enable L PE Example 2 24 VDC (+) 48/230 VAC 24/115 VAC Z1 Y1 3 N (-) N (-) Example 2 4 I U 5 25 µ 11 Y1 Y2 A1 µ A3 16 µ 18 26 28 I U Y3 Z3 A2 15 25 N (-) DIC01 4 PIC01 Specifications are subject to change without notice (21.10.00) DIC01, PIC01 Operation Diagrams Over+over voltage/current Over+over voltage/current - Latch Power Supply Power Supply Latch ON Set Level 1 Hysteresis Set Level 1 Hysteresis Set Level 2 Hysteresis RE1(DIC01) Set Level 2 1 or 6 s T1 1 or 6 s T2 Hysteresis T1 T2 RE1(DIC01) 1 or 6 s T1 DPDT(DIC01)/RE(PIC01) 1 or 6 s RE2(DIC01) 1 or 6 s T2 Red LED ON DPDT(DIC01)/RE(PIC01) 1 or 6 s RE2(DIC01) T1 T2 Red LED ON Over+under voltage/current - N.E. relay(s) Over+under voltage/current - Inhibit - N.E. relay(s) Power Supply Power Supply Inhibit ON Set Level 1 Hysteresis Set Level 1 Hysteresis Set Level 2 Hysteresis 1 or 6 s RE1(DIC01) T1 1 or 6 s DPDT(DIC01)/RE(PIC01) T Hysteresis 1 or 6 s T2 RE2(DIC01) 1 or 6 s Set Level 2 T1 RE1(DIC01) T1 1 or 6 s T T2 RE2(DIC01) 1 or 6 s Red LED ON DPDT(DIC01)/RE(PIC01) T1 T1 T2 T1 Red LED ON Under+under voltage/current Power Supply Set Level 1 Set Level 2 Hysteresis Hysteresis RE1(DIC01) 1 or 6 s RE2(DIC01) 1 or 6 s DPDT(DIC01)/RE(PIC01) 1 or 6 s T1 T1 T2 T Red LED ON Specifications are subject to change without notice (21.10.00) 5