Up/Down Counting Meter K3NC Counters An Ideal Interface for High-speed Up/Down Counting and Serial Communications • 50-kHz input range for high-speed signal processing. • A wide selection of outputs: relay, transistor, BCD, linear, or communications. • Prescale function available, which displays in units of actual physical parameters (length, volume, etc.). • Built-in sensor power supply (12 VDC, 80 mA). • Banks with four set values and four prescale values. • Five-stage comparative outputs available. • Compact 1/8 DIN size. • Conforms to EMC standards, EN61010-1 (IEC1010-1). • UL/CSA approved. Model Number Structure ■ Model Number Legend Base Units and Output Boards can be ordered individually or as sets. Refer to the Output Board Combinations table on page 132. Output Boards K31 - Base Units K3NC 1 2 3 4 5 6 1, 2. Input Sensors Codes NB: NPN inputs/Voltage pulse inputs PB: PNP inputs 3. Supply Voltage 1: 100 to 240 VAC 2: 12 to 24 VDC 4. Display A: Basic C: Set Value LED Display 5, 6, 7, 8. Output Type Codes C2: 5 comparative relay contact outputs (OUT1, 2, 4, 5: SPSTNO; OUT3: SPDT) C5: 5 comparative relay contact outputs (OUT1, 2, 4, 5: SPSTNC; OUT3: SPDT) T1: 5 comparative transistor outputs (NPN open collector) T2: 5 comparative transistor outputs (PNP open collector) B2: BCD output (NPN open collector) (see note) B4: BCD output + 5 transistor outputs (NPN open collector) L1: Linear output (4 to 20 mA) (see note) Base Units with Output Boards K3NC 7 8 1 2 3 4 5 6 7 8 L2: L3: L4: Linear output (1 to 5 VDC) (see note) Linear output (1 mV/10 digits) (see note) Linear output, 4 to 20 mA + 5 transistor outputs (NPN open collector) L5: Linear output, 1 to 5 V + 5 transistor outputs (NPN open collector) L6: Linear output, 1 mV/10 digits+ 5 transistor outputs (NPN open collector) L7: Linear output, 0 to 5 VDC (see note) L8: Linear output, 0 to 10 VDC (see note) L9: Linear output, 0 to 5 VDC + 5 transistor outputs (NPN open collector) L10: Linear output, 0 to 10 VDC + 5 transistor outputs (NPN open collector) FLK1: Communication RS-232C (see note) FLK2: Communication RS-485 (see note) FLK3: Communication RS-422 (see note) FLK4: RS-232C + 5 transistor outputs (NPN open collector) FLK5: RS-485 + 5 transistor outputs (NPN open collector) FLK6: RS-422 + 5 transistor outputs (NPN open collector) Note: These output types are available on Basic Models only. Up/Down Counting Meter K3NC C-131 Ordering Information ■ Base Unit Input type NPN/Voltage pulse Supply voltage 100 to 240 VAC 12 to 24 VDC PNP 100 to 240 VAC 12 to 24 VDC Basic Models These models provide a present value LED and front-panel control keys. Can be connected to any Output Board, or can be used for display only without an Output Board. K3NC-NB1A K3NC-NB2A K3NC-PB1A K3NC-PB2A Set Value LED Models These models provide a present value LED, set value LED, and front-panel control keys. Can be connected to Relay, Transistor, or Combination Output Boards. K3NC-NB1C K3NC-NB2C K3NC-PB1C K3NC-PB2C ■ Available Output Board Combinations Output type Output configuration Output boards Base units Basic Relay contact Transistor Set Value LED Display 5 outputs: OUT1, 2, 4, 5 (SPST-NO), and OUT3 (SPDT) K31-C2 Yes Yes 5 outputs: OUT1, 2, 4, 5 (SPST-NC), and OUT3 (SPDT) K31-C5 Yes Yes 5 outputs (NPN open collector) K31-T1 Yes Yes 5 outputs (PNP open collector) K31-T2 Yes Yes BCD (see note) 5-digit output (NPN open collector) K31-B2 Yes --- Linear 4 to 20 mA DC K31-L1 Yes --- 1 to 5 VDC K31-L2 Yes --- 1 mV/10 digits K31-L3 Yes --- Communication boards (see note) Combination output and communication boards 0 to 5 VDC K31-L7 Yes --- 0 to 10 VDC K31-L8 Yes --- RS-232C K31-FLK1 Yes --- RS-485 K31-FLK2 Yes --- RS-422 K31-FLK3 Yes --- BCD output + 5 transistor outputs (NPN open collector) K31-B4 Yes Yes 4 to 20 mA + 5 transistor outputs (NPN open collector) K31-L4 Yes Yes 1 to 5 V + 5 transistor outputs (NPN open collector) K31-L5 Yes Yes 1 mV/10 digits + 5 transistor outputs (NPN open collector) K31-L6 Yes Yes 0 to 5 VDC + 5 transistor outputs (NPN open collector) K31-L9 Yes Yes 0 to 10 VDC + 5 transistor outputs (NPN open collector) K31-L10 Yes Yes RS-232C + 5 transistor outputs (NPN open collector) K31-FLK4 Yes Yes RS-485 + 5 transistor outputs (NPN open collector) K31-FLK5 Yes Yes RS-422 + 5 transistor outputs (NPN open collector) K31-FLK6 Yes Yes Note: For details, refer to the Communication Operation Manual. C-132 Up/Down Counting Meter K3NC Specifications ■ Ratings 100 to 240 VAC (50/60 Hz); 12 to 24 VDC Operating voltage range 85% to 110% of supply voltage Power consumption (see note) 15 VA max. (max. AC load with all indicators lit) 10 W max. (max. DC load with all indicators lit) Sensor power supply 80 mA at 12 VDC±10% Insulation resistance 20 MΩ min. (at 500 VDC) between external terminal and case. Insulation provided between inputs, outputs, and power supply. Dielectric strength 2,000 VAC for 1 min between external terminal and case. Insulation provided between inputs, outputs, and power supply. Noise immunity ±1,500 V on power supply terminals in normal or common mode ±1 µs, 100 ns for square-wave noise with 1 ns Vibration resistance Malfunction: 10 to 55 Hz, 0.5-mm for 10 min each in X, Y, and Z directions Destruction: 10 to 55 Hz, 0.75-mm for 2 hrs each in X, Y, and Z directions Shock resistance Malfunction: 98 m/s2 for 3 times each in X, Y, and Z directions Destruction: 294 m/s2 for 3 times each in X, Y, and Z directions Ambient temperature Operating: Storage: −10°C to 55°C (with no icing) −20°C to 65°C (with no icing) Ambient humidity Operating: 25% to 85% (with no condensation) EMC (EMI) Emission Enclosure: Emission AC Mains: (EMS) Immunity ESD: Approved standards UL508, CSA22.2; Conforms to EN61326+A1, EN61010-1 (IEC61010-1) Conforms to VDE0106/P100 (finger protection) when the terminal cover is mounted. Weight Approx. 400 g Counters Supply voltage EN61326+A1 Industry CISPR 11 Group 1 class A: CISRP16-1/-2 CISPR 11 Group 1 class A: CISRP16-1/-2 EN61326+A1 Industry EN61000-4-2: 4 kV contact discharge (level 2) 8 kV air discharge (level 3) Immunity RF-interference: EN61000-4-3: 10 V/m (amplitude-modulated, 80 MHz to 1 GHz) (level 3) Immunity Fast Transient Noise: EN61000-4-4: 2 kV (power line) (level 3) Immunity Burst Noise: 1 kV line to line (I/O signal line) Immunity Surge: EN61000-4-5: 1 kV line to line 2 kV line to ground (power line) Immunity Conducted Disturbance EN61000-4-6: 3 V (0.15 to 80 MHz) (level 2) Immunity Voltage Dip/Interrupting EN61000-4-11: 0.5 cycles, 0, 180°, 100% (rated voltage) Note: A K3NC with DC supply voltage requires approximately 1 A DC as control power supply current the moment the K3NC is turned ON. Do not forget to take this into consideration when using several K3NC units. When the K3NC is not in measuring operation (e.g., the K3NC has been just turned ON or is operating for startup compensation time), the display will read “00000” and all outputs will be OFF. Up/Down Counting Meter K3NC C-133 ■ Characteristics Input signal No-voltage contact (30 Hz max., ON/OFF pulse width: 15 ms min.) Voltage pulse (50 kHz max., ON/OFF pulse width: 9 µs min., ON voltage: 4.5 to 30 V/OFF voltage: −30 to 2 V) Open collector (50 kHz max., ON/OFF pulse width: 9 µs min.) Connectable Sensors ON residual voltage: 3 V max. OFF leakage current: 1.5 mA max. Load current: Must have switching capacity of 20 mA min. Must be able to dependably switch a load current of 5 mA max. Input mode Up/Down B (individual inputs), Up/Down C (phase difference inputs) Output mode ALL-H/ALL-L Max. displayed digits 5 digits (−19999 to 99999) Display 7-segment LED Polarity display “−” is displayed automatically with a negative input signal. Zero display Leading zeros are not displayed. Prescale function Programming via front-panel key inputs. (0.0001 x 10−9 to 9.9999 x 109, decimal point can be set freely) Can be set using prescale value teaching. External control RESET: 16 ms max. (external reset signal) COMPENSATION: 16 ms max. (external compensation signal) BANK 1, 2: 100 ms max. (bank switching time) Up to 4 set value or prescale value banks available Other functions Variable linear output range (for models with linear outputs only) Remote/Local processing (available for communications output models only) Counting value reset with front panel keys Security Memory power failure Output configuration Relay contact output (5 outputs) Transistor output (NPN and PNP open collector), BCD (NPN open collector) Parallel BCD (NPN open collector) + transistor output (NPN open collector) Linear output (4 to 20 mA, 1 to 5 V) + transistor output (NPN open collector) Communication functions (RS-232C, RS-485, RS-422) Communication functions (RS-232C, RS-485, RS-422) + transistor output (NPN open collector) Delay in comparative outputs 1 ms max. (at transistor output), 10 ms max. (at relay output) Linear output response time 20 ms max. Degree of protection Front panel: NEMA4 for indoor use (equivalent to IP66) Rear case: IEC standard IP20 Terminals: IEC standard IP00 Memory protection Non-volatile memory (EEPROM) (possible to rewrite 100,000 times) ■ Input/Output Ratings Relay Contact Output (Incorporating a G6B Relay) Item Resistive load (cosφ = 1) Inductive load (cosφ = 0.4, L/R = 7 ms) Rated load 5 A at 250 VAC; 5 A at 30 VDC Rated carry current 5 A max. (at COM terminal) Max. contact voltage 380 VAC, 125 VDC Max. contact current 5 A max. (at COM terminal) Max. switching capacity 1,250 VA, 150 W Min. permissible load (P level, reference value) 10 mA at 5 VDC Mechanical life 50,000,000 times min. (at a switching frequency of 18,000 times/hr) Electrical life (at an ambient temperature of 23°C) 100,000 times min. (at a rated load switching frequency of 1,800 times/hr) Transistor Output Rated load voltage 12 to 24 VDC +10%/-15% Max. load current 50 mA Leakage current 100 µA max. C-134 Up/Down Counting Meter K3NC 1.5 A at 250 VAC, 1.5 A at 30 VDC 375 VA, 80 W BCD Output I/O signal name Outputs Item REQUEST, COMPENSATION, RESET DATA, POLARITY, OVERFLOW, DATA VALID, RUN Rating Input signal No-voltage contact input Input current with no-voltage input 10 mA Signal level ON voltage: 1.5 V max. OFF voltage: 3 V min. Rated load voltage 12 to 24 VDC +10%/-15% Max. load current 10 mA Leakage current 100 µA max. Counters Inputs Note: Logic method: negative logic Linear Output Item 4 to 20 mA Resolution 4,096 Output error ±0.5% FS Permissible load resistance 600 Ω max. 1 to 5 V 1 mV/10 digits (see note) ±1.5% FS 500 Ω min. 1 KΩ min. Note: For the 1 mV/10-digit output, the output voltage changes for every 40 to 50 increment in the display value. ■ Communications Specifications Item RS-232C, RS-422 RS-485 Transmission method 4-wire, half-duplex Synchronization method Start-stop synchronization Baud rate 1,200/2,400/4,800/9,600/19,200/38,400 bps ASCII (7-bit) Transmission code Communications 2-wire, half-duplex Write Comparative set value, prescaling value, remote/local programming, reset control, and other setting mode items excluding communications conditions. Read Process value, comparative set value, model data, error code, and others For details, refer to Communication Operation Manual. Up/Down Counting Meter K3NC C-135 Connections ■ Terminal Arrangement Terminal Numbers Output unit Output unit 18 19 20 21 22 23 24 25 26 10 11 12 13 14 15 16 17 Input unit 1 2 3 4 5 6 7 8 9 Note: Terminals 7 to 13 are connected internally. Terminals 7 and 11 are mutually isolated. Input unit Input Unit Voltage Pulse Inputs PNP-input Models External sensor power 10 supply (+) +12 V Input B 820 Ω 1 +12 V 590 Ω +12 V GND 590 Ω 820 Ω 2 External sensor 11 power supply (−) Input A 10 k Ω 3 590 Ω 820 Ω Input A GND +12 V Input B 10 k Ω 4 590 Ω 820 Ω Input B 11 NPN Open Collector Output (NPN Linear 2-wire Output) 1 820 Ω GND 2 820 Ω External sensor 11 power supply (−) GND GND +12 V 590 Ω +12 V Internal circuits Input A +12 V Internal circuits External sensor 10 power supply (+) Contact Output 590 Ω Internal circuits NPN Inputs GND GND Voltage Output PNP Open Collector Output Input resistance: 10 kΩ 10 10 1 1 +12 V INA 10 11 10 11 11 2 3 4 INA 2 3 INB 4 +12V GND INB 1 2 3 1 4 +12V INA INB 0V INA 11 2 3 4 INB 0V 0V Contact NPN output sensor Note: When the contact is shortcircuited, a current of approximately 13 mA will flow at a voltage of approximately 12 V. Note: Connect the + side of the NPN linear 2-wire input to terminal 1 and the − side to terminal 11. C-136 Up/Down Counting Meter K3NC Voltage pulse output sensor Note: With voltage pulse input not from a 3-wire sensor, connect the + side to terminal 3 and the − side to terminal 11. PNP output sensor Output Unit K31-C1: Relay (3 Outputs) K31-C2: Relay (5 Outputs) Outputs (5 A max. at 250 VAC) 18 PASS 19 20 21 Outputs (5 A max. at 250 VAC) H HH L 22 23 24 25 26 K31-C5: Relay (5 Outputs) 18 LL PASS 19 20 21 L 22 23 24 25 26 Counters H K31-T1: Transistor (NPN Open Collector) Outputs (5 A max. at 250 VAC) H Outputs (50 mA max. at 24 VDC) LL HH PASS L 18 19 20 21 22 23 24 25 20 HH H PASS L LL COM 21 22 23 24 25 26 104 4 8 K31-L1, L2, L3,-L4, -L5, -L6, -L7, -L8, -L9, -L10: Linear (Terminals 21 to 26 are provided only on K31-L4, -L5, -L6, -L9, -L10.) L1, L4: 4 to 20 mA L2, L5: 1 to 5 V L3, L6: 1 mV/10 digit L7, L9: 0 to 5 VDC L8, L10: 0 to 10 VDC + − 18 19 20 L LL COM 23 24 25 26 K31-B2, -B4: BCD (NPN Open Collector) (Terminals 32 to 36 are provided only on K31-B4. Outputs (50 mA max. at 24 VDC) 19 PASS 22 26 K31-T2: Transistor (PNP Open Collector) 18 H 21 20 DATA OVERFLOW DATA VALID RUN COMMON REQUEST MAX. REQ. MIN. REQ. HOLD RESET POLARITY HH H PASS L LL COMMON 18 19 HH 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 2 4 8 1 2 4 8 1 2 4 8 1 2 4 8 1 2 100 COMMON 101 102 103 104 Outputs (50 mA max. at 24 VDC) HH H PASS L LL COM 21 22 23 24 25 26 K31-FLK1: RS-232C 14 15 16 17 18 19 20 21 22 23 24 25 2 3 4 5 6 K31-FLK3, -FLK6: RS-422 (The right connector is provided only on K31-FLK6) PASS L LL COM 22 23 24 25 26 Terminator ON 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 K31-FLK4: RS-232C + Transistor (NPN Open Collector) Output NPN Tr. (50 mA max. at 24 VDC) LL RS-232C 9 8 7 6 5 4 3 2 1 SG • D-sub 37P Connectors for BCD output (attachment) Plug: XM2A-3701 Hood: XM2S-3711 • D-sub 25P connectors for RS-232C output (K31-FLK1) (order separately) Plug: XM2A-2501 Hood: XM2S-2511 • D-sub 9P connectors for RS-422 output (K31-FLK3 and K31FLK6) (order separately) Plug: XM2A-0901 Hood: XM2S-0911 • D-sub 9P connectors for RS-232C output (K31-FLK4) (order separately) Plug: XM2D-0901 Hood: XM2D-0911 SG RDB OFF LL H 21 HH H COM PASS L HH 20 9 8 7 6 5 4 3 2 1 L PASS COM H HH Outputs (50 mA max. at 24 VDC) SDA ON OFF SDB 19 RDA RS-485 − Output NPN Tr. (50 mA max. at 24 VDC) RS-422 Terminator 18 9 10 11 12 13 With K31-L4/-L5/-L6/-L9/-L10 models, terminals 19 and 26 are connected internally. K31-FLK2, -FLK5: RS-485 (Terminals 21 to 26 are provided only on K31-FLK5.) + 8 SD RD Note: 7 SG SD RD 1 Up/Down Counting Meter K3NC C-137 ■ Block Diagram Key switch Power supply for sensor Sensor A Sensor B GND Input circuit Control input Control input circuit Frequency measurement circuit 8-bit microcomputer Power supply circuit Output circuit Waveform adjustment circuit Voltage stabilizing circuit Control power supply LED Power supply for sensor (input circuit) Voltage stabilizing circuit Frequency measurement circuit Waveform adjustment circuit 8-bit microcomputer Voltage stabilizing circuit Control input circuit ■ Rotary Encoder Connection Example 0V Phase A Phase B INA/INB Counts input signals. Accepts Up/Down (individual or phase difference) inputs. RESET Resets the present value to zero. No counting inputs are accepted when a RESET input is ON. RESET is lit when a RESET input is ON. Note: External reset minimum signal width: 16 ms COMPENSATION Resets the present counting value to the compensation value at the rising edge of a compensation input. In the compensation value setting parameter, it is possible to set to “Effective during incrementing and decrementing a count” or to “Effective only during incrementing a count.” Note: External compensation input minimum signal width: 16 ms BANK 1, 2 Selects one of the four banks. Bank no. Control input Bank 1 OFF OFF 2 ON OFF 3 OFF ON 4 ON ON Note: Bank switching minimum signal width: 100 ms max. C-138 Bank 2 1 Up/Down Counting Meter K3NC Operation Linear Output Range lset Remote/Local Selection r-l A linear output range can be set as required. A value corresponding to the maximum output value and that corresponding to the minimum output value can be set. Select remote programming when performing all settings through the host devices and select local programming when performing settings through key operation. 20 mA Output For the 4- to 20-mA output type 4 mA Lower limit Upper limit Display ■ BCD Output Timing Chart A request signal from an external device (such as a Programmable Controller) is required to read BCD data. Single Sampling Data Output Pulse with a width of no less than 20 ms. (no more than 50 ms.) REQ. DATA All data "high" Data All data "high" DATA VALID 40 ms 16 ms Approx. 30 ms Approximately 30 ms after the REQ signal rises, a sample is taken and the DATA VALID signal is output. Read the data when the DATA VALID signal is ON. The DATA VALID signal will turn OFF in 40 ms, and then in 16 ms, the data will go OFF. Models with a BCD output have an open collector output configuration so that wired-OR connection is possible. REQ. (1) K3NC (1) Programmable controller REQ. (2) REQ. (3) K3NC (2) DATA (incl. POL and OVER) and DATA VALID are wired-OR processed. The RUN, OUT5, OUT4, OUT3, OUT2, and OUT1 signals are always output regardless of the status of the REQ signal. Do not OR-wire these signals. K3NC (3) DATA (1) (3) (2) DATA VALID * * * *The period between the DATA VALID signal and the REQ signal should be no less than 20 ms max. Continuous Data Output The K3NC outputs each measurement at an interval of 64 ms when a REQ signal is ON continuously. REQ. DATA All data "high" Data 1 Data 2 DATA VALID 40ms Approx. 30 ms 64ms 40ms 24ms 64ms 24ms Up/Down Counting Meter K3NC C-139 Counters ■ Main Functions Example of Connection to Programmable Controller PC (SYSMAC) DC Input Unit K3NC 1. COMMON 2. 1 COM IN 3. 2 IN 4. 4 IN 5. 8 IN Internal circuit 10 0 23. DATA VALID 24. RUN IN IN 25. COMMON Transistor Output Unit 26. REQUEST OUT 30. RESET OUT 240 Ω 240 Ω 240 Ω 31. POLARITY (Polarity: +, −) COM (0 V) 24 VDC +24 V DC power supply 0V C-140 Up/Down Counting Meter K3NC Internal circuit +5 V Internal circuit 240 Ω Example of Connection to Display Unit K3NC 1.COMMON 2.1 3.2 Counters 100 4.4 5.8 23.DATA VALID 24.RUN 101 102 25.COMMON 26.REQUEST +5V Connected 240 Ω 240 Ω 240 Ω 31.POLARITY (Polarity: +, −) V O D C B A DP LE V O D C B A DP LE V O D C B A DP LE V O 30.RESET 240 Ω 8 8 8 SEC M7E-01D@N2 or M7E-01H@N2 M7E Digital Display Unit Up/Down Counting Meter K3NC C-141 ■ Output Operation Timing in RUN Mode (Relay and Transistor Outputs) The K3NC can output the results of Up/Down counting as comparative outputs. The output mode can be set to the ALL-H mode or the ALL-L mode. ALL-H ALL-L If the ALL-H output mode is selected, outputs 1 to 5 will be ON when the measured value exceeds set values 1 to 5. If the ALL-L output mode is selected, outputs 1 to 5 will be ON when the measured value is less than set values 1 to 5. Measured value Set value 5 Measured value Set value 5 Set value 4 Set value 4 Set value 3 See note Set value 2 Set value 3 See note Set value 2 Set value 1 Set value 1 Reset Reset Compensation value Compensation value Output 5 Output 5 Output 4 Output 4 Output 3 Output 3 Output 2 Output 2 Output 1 Output 1 Note: Set value 2 < compensation value < set value 3 While the reset signal is ON, the counting value will return to zero. Note: Set value 2 < compensation value < set value 3 When the compensation signal is ON, the K3NC will be in counting operation starting with the preset compensation value. Depending on the setting conditions, the compensation value will be effective only for the incrementing operation. ■ Output Delay (Reference Value) The following table shows the time required for a K3NC in a system to go into reverse output operation after the counting value reaches the value preset with the K3NC, and is due to the output processing time of the K3NC, signal transmission time of the system, and the relay connected to the K3NC. Control I/O Output or response delay time Relay contact output 3.0 to 10.0 ms NPN/PNP transistor output 0.1 to 0.6 ms Reset input 12.0 to 16.0 ms Compensation input 12.0 to 16.0 ms Bank switch 60.0 to 100.0 ms Note: Output delay time varies with the operating environment. If the output delay time will possibly have a serious influence on your system, check the actual output delay time before applying the K3NC to the system. ■ Input Mode and Counting Values u-d b : Up/Down B individual input u-d c : Up/Down C phase difference input INA INA INB INB Counting value Counting value Note: 1. “B” must be larger than half the minimum signal width. If it is smaller, an error of ±1 count may occur. 2. Refer to the following for the meanings of the H and L characters in the above timing charts. Signal No-voltage input H Short-circuit L Open C-142 Up/Down Counting Meter K3NC Nomenclature 1. SV Display 2. PV Display 7. Status Indicators OUT5 OUT3 OUT2 4. SV Display Status Counters OUT4 3. Comparative Output Status Indicators OUT1 1 OUT 2 3 4 5 8. Teaching Indicator 5. ESC Key 9. RESET/TEACH Key 6. Mode Key 10. Up Key and Shift Key Name Functions 1. SV display Displays the set value or parameter. Available for Set Value LED Models only. 2. PV display Displays the process value or parameter. 3. Comparative output status indicators Displays the status of comparative output. 4. SV display status Indicates which comparative set value is currently on the SV display. 5. ESC Key Used to return to the RUN mode from the Setting, Protect or Maintenance mode. 6. Mode Key Used to enter the Setting mode. Used to allow the PV display to indicate set values sequentially. Available for Basic Models only. Used to indicate set values sequentially on the SV display. Available for Set Value LED Models only. 7. Status indicator RESET: Lit when the RESET input is ON. PROG: Lit or flashes while parameters are being set. 8. Teaching indicator Lit when the teaching function is enabled and flashes when the K3NC is in teaching operation. 9. RESET/TEACH Key The counting value is reset by pressing this key. Teaching is available when the teaching function is enabled. 10. Up Key and Shift Key The digit being set is scrolled by pressing the Shift Key. The set value increases by one whenever the Up Key is pressed. Up/Down Counting Meter K3NC C-143 Engineering Data Max. current (mA) Derating Curve for Sensor Power Supply Note: The derating curve shown is for standard installation. The derating curve depends on the mounting direction. Ambient temperature (°C) C-144 Up/Down Counting Meter K3NC Dimensions Note: All units are in millimeters unless otherwise indicated. Panel Cutouts PV Display 14.2 92+0.8 −0 75 8.2 RESET OUT5 OUT4 OUT3 OUT2 OUT1 1 2 3 OUT 4 5 120 Note: The K3NC uses M3.5 terminals. A terminal cover is provided. Up/Down Counting Meter K3NC C-145 Counters 45+0.8 −0 Precautions !WARNING Do not touch any of the terminals while the power is being supplied. Doing so may result in electric shock. !Caution Do not allow metal objects or conductive wire cuttings to enter the product. Doing so may result in electric shock, fire, or malfunction. !Caution Do not attempt to take the product apart or touch any internal parts while the power is being supplied. Doing so may result in electric shock. !Caution Do not use the product in locations subject to flammable or explosive gases. Doing so may result in explosion. !Caution The lifetime of output relays varies greatly with the switching capacity and conditions. Consider the actual operating conditions, and use the relays within the rated load without exceeding the number of operations specified as the rated electrical life. Using relays beyond their rated electrical life may result in contact deposit or burning. !Caution Do not use loads exceeding the rated value. Doing so may result in damage or burning. !Caution Use a power supply voltage within the specified range. Not doing so may result in damage or burning. !Caution Use settings that are appropriate for the control system. Discrepancies between the settings and the actual control conditions may result in unexpected operation leading to damage or accidents. !Caution Be sure to tighten terminal screws to the specified torque. Specified torque for M3.5 screws: 0.74 to 0.90 N·m Loose screws may result in burning or malfunction. ■ Application Precautions • Use a power supply voltage within the specified range. Not doing so may result in damage or burning. • Be sure to perform wiring correctly, verifying the terminal names. Incorrect wiring may result in burning. • Be sure to tighten the screws on the terminal block properly. • Do not connect anything to unused terminals. ■ Correct Use Long-term Use Use all products within the specified ranges. When using inside a control panel, ensure that the temperature around the product, rather than the temperature around the control panel, does not exceed the specified temperature range. Electronic products, such as this product, have a lifetime that is dependent on the lifetime of internal electronic components, as opposed to the lifetime related to the number of relay switching operations. The lifetime of these components varies with the temperature; the higher the temperature, the shorter the lifetime. Therefore, the product lifetime can be extended by lowering the internal temperature of the product. When several Counting Meters are mounted close together (either horizontally or vertically), the internal temperature of the Counting Meters may rise, leading to a reduction in the lifetime. In this case, take measures to cool the Counting Meters, such as installing fans. Ensure, however, that the terminals are not cooled as this may lead to incorrect measurement. Operating Environment Do not use the product in locations subject to temperatures or humidity levels above the specified ranges, or in locations subject to condensation. Do not use the product in locations subject to severe shocks or vibrations. Separate the product from machines that generate high-frequency noise, such as high-frequency welding machines and high-frequency sewing machines. Do not use the product in locations subject to dust or corrosive gases. Do not use the product outdoors or in locations subject to direct sunlight. Operation When using models with comparative outputs, if an error occurs at the Counting Meter, comparative output may not operate correctly. We therefore recommend that you consider providing an alarm system separately as a countermeasure. Parameter settings that allow the functions to operate properly are made, using the setting menu, at the factory prior to delivery. When using the product, change the settings as required for the application. Mounting Recommended panel thickness is 1 to 3.2 mm. Panel C-146 Up/Down Counting Meter K3NC Attach the mounting bracket on the left and right sides of the Counting Meter as shown in the illustration above and gradually tighten each screw evenly in turn by considering the balance of the tightening force until the ratchets start slipping without being further tightened. Unit Label (Provided) No product is shipped with the unit label attached. Select a unit label from the sheet provided and attach it to the Counting Meter. Mount the Counting Meter as horizontally as possible. Waterproof Specifications Counters Products for which the degree of protection is not specified or models with IP@0 degree of protection do not have waterproof specifications. Noise Countermeasures Separate the product as far as possible from machines that generate high-frequency noise, such as high-frequency welding machines and high-frequency sewing machines, and machines that generate surges. Attach surge absorbers or noise filters to noise-generating peripheral devices (in particular, devices with inductance such as motors, transformers, solenoids, and magnet coils). Signal input + − K3NC K3NC Power input Power input Line filter Surge absorber In order to prevent inductive noise, wire the lines connected to the terminal block separately from power lines carrying high voltages or large currents. Also, do not wire in parallel to, or in the same cable as power lines. There are other methods that are effective for reducing noise, such as running wires along ducts and using shield lines. When using a noise filter for the power supply, check the voltage and current and install as close to the Counting Meter as possible. Inductive Noise Countermeasure for Input Line Analog Input + Signal input Processor − Two-conductor shield wire Temperature Input In order to prevent the influence of induction, separate the lead wire joining the temperature sensor and the Counting Meter from power and load lines. Using the product near radios, television sets, or other wireless devices may result in reception interference. Up/Down Counting Meter K3NC C-147 Operating Procedures ■ Operation in RUN Mode Reset Bank Selection BANK1 RESET for 1 s min. to reset the counting Press the RESET/TEACH Key /TEACH value to 0. (Enabled when key protection is cleared.) Measurement value BANK2 RESET /TEACH 0 COM 1 s min. • Switch between the comparative set values and the prescaling values for banks 1 to 4 using the BANK 1 and BANK 2 signals. • The relationship between the BANK 1 and BANK 2 signals and the bank numbers is shown in the following table. Checking the Bank Number Press the Shift Key for 1 s min. during measurement to display the bank number in the PV display. (The display will return to the measurement value if there is no key operation for 5 seconds.) Bank number BANK 1 BANK 2 Comparat Prescaling ive set value value 1 OFF OFF sU1.** ps1.** 2 ON OFF sU2.** ps2.** 3 OFF ON sU3.** ps3.** 4 ON ON sU4.** ps4.** Note: If the prescale value bank is set to OFF, then the prescaling value for each bank is fixed. Confirming and Setting Comparative Set Values During measurement display, press the Mode Key repeatedly to display the comparative set values in the order OUT1, OUT2, OUT3, OUT4, and OUT5. (With models that have an SV display, the comparative set values are displayed in the SV display.) Measurement value Comparative set value OUT1 Comparative set value OUT2 No key operation for 5 s Comparative set value OUT3 No key operation for 5 s No key operation for 5 s Note: When a comparative set value is displayed, it can be changed using the Up Key C-148 Up/Down Counting Meter K3NC Comparative set value OUT4 Comparative set value OUT5 No key operation for 5 s and Shift Key No key operation for 5 s (if key protection is OFF). ■ Setting Procedures RUN Mode: Remains in this mode under normal operation. The process value can be monitored. Using the front panel keys, the comparative set value can be changed and counting value reset can be performed. Setting Mode: Used for making initial settings. Includes settings for four menus (Set value (sUset sUset), pscl), setup), opt)) sUset prescaling (pscl pscl setup (setup setup option (opt opt and the output test. Protect Mode: Used for locking the front key operation or parameter changes. Maintenance Mode: Used for initializing set values. When power is ON + Power ON Maintenance mode ESC RUN mode ESC + 1s 1s ESC ESC Protect mode Setting mode sUset - Program set values s.bank sU*.01 sU .01 sU*.02 sU .02 sU*.03 sU .03 sU*.04 sU .04 sU*.05 sU .05 Select bank no. of set values Enter set value OUT1 of bank 1 Enter set value OUT2 of bank 1 Enter set value OUT3 of bank 1 Enter set value OUT4 of bank 1 Enter set value OUT5 of bank 1 reset secr Enable prohibition of counting value reset using the front panel keys Specify the menus to be protected against setting in the setting mode Note: The above is an example when the bank number is set to 1. pscl - Display prescaling p.bank ps*.ax ps .ax ps*.ay ps .ay decp.* decp. Select bank no. of prescale values Set the mantissa (X) of the prescale value Set the exponent (Y) of the prescale value Select decimal point Note: The above is an example when the bank number is set to 1. setup - Program input mode/input sensor/serial communications count in u-no bps len sbit prty Specify input mode Select a sensor type Enter the unit no. for the host Select the baud rate Select the word bit length Select the stop bits Select the parity bits opt - Supplementary settings related to display or control memo compn con-p out lset.h lset.l r-l Select power failure memory function Set compensation value Select conditions that allow compensation input Select output mode Enter the upper limit (H) of linear output range Enter the lower limit (L) of linear output range Select the remote/local programming test - Generating simulated input for testing the output function prot - Program lock-out configuration all sUset Enable all key protection Enable set value change prohibition Up/Down Counting Meter K3NC C-149 Counters The K3NC has four modes: RUN mode for normal operations, Setting mode for initial parameter input, Protect mode for lock-out configuration, and Maintenance mode for initializing set values. The parameters that are accessible on any individual K3NC will vary depending on the Output Board installed. Refer to the K3NC Operation Manual for details. ■ Initial Settings ■ Parameters Power ON Power ON Press the Mode Key Mode. for 1 s min. to move to the Setting Press the ESC Key Up Key for 1 s. RUN Mode Refer to Operation in RUN Mode. Select the setup menu ( ) with the Mode Key and set the input mode, the input type, and other settings. Setting Mode 1s If required, set a prescale value in the prescaling menu ( ). Set value menu Set comparative set values in the set value menu ( ). 1s Comparative set value bank Make settings in the option menu ( − No key operation for 5 s ) as required. (See note 1.) Comparative set value OUT1 − 0 − − 0 − − 0 − − 0 − − 0 − No key operation for 5 s If necessary, generate simulated input for testing the output function in output test ( ). (See note 1.) Comparative set value OUT2 No key operation for 5 s (See note 1.) After completing all the settings, press the ESC Key return to RUN Mode. to Comparative set value OUT3 No key operation for 5 s (See note 1.) Comparative set value OUT4 Measurement starts. No key operation for 5 s (See note 1.) Relationship between Input Mode and Counting Value Comparative set value OUT5 : Up/Down B (individual inputs) INA H L INB H L No key operation for 5 s 3 0 3 2 2 Counting value 1 2 1 0 Symbol No-voltage input H L Closed Open : Up/Down C (phase difference inputs) INA H L INB H L 3 2 Counting value 0 1 3 2 2 Output test Note 1: The meaning of H and L in the graphs: 1 2: At least 1/2 of the first signal width is required for B. Otherwise a counting error of ±1 may occur. 1 0 Selecting the Sensor Type NO: Voltage pulse H NC: Voltage pulse L No-contact or voltage pulse input Contact input Prescaling The prescale function makes it possible to convert the counting value of the K3NC into an appropriate value. For example, the system shown in the illustration outputs 250 pulses when the object is advanced 0.5 m. To enable the K3NC to display @@@@.@ (mm), obtain the advanced length of the object per pulse from the following formula. 500 mm (0.5 m)/250 = 2 1. The prescale value is set by the mantissa X multiplied by the exponent Y as follows: Prescale value = 2.0000 x 100 X = 2.0000, Y = 00 2. Set the decimal point to the left of the rightmost digit. C-150 Up/Down Counting Meter K3NC 0.5 m 250 pulses K3NC Encoder and Changing Set Values By pressing the Shift Key while a parameter is displayed, the set value can be changed (setting status). The PROG status indicator will flash. Change the set value as required, and press the Mode Key to register the setting and move to the next parameter. Setting Status Change the set value using the Up Key and the Shift Key . u-d c count Counters Protect Mode PROG flashes. Next parameter If there is no key operation for 5 seconds, the setting is registered and the parameter is displayed again. Setup menu Prescaling menu 1s 1s Input mode Prescale value bank − (See note 1.) b b/u-d u-d c No key operation for 5 s Sensor type Input A prescale value mantissa − (See note 1.) u-d No key operation for 5 s − Communications unit number No key operation for 5 s Input A prescale value exponent No key operation for 5 s − No key operation for 5 s − Baud rate (See note 1.) − No key operation for 5 s 1200/2400/4800/ 9600 /19200/38400bps No key operation for 5 s Decimal point − 7 /8bit Word bit length No key operation for 5 s No key operation for 5 s Stop bits 1/ 2 bit No key operation for 5 s Parity bits / / Option menu 1s Power failure memory No key operation for 5 s Compensation value − − · In the Setting Mode, the measurement value is reset (i.e., to 0) and outputs turn OFF. · The measurement value will be reset if the Setting Mode is entered during measurement. No key operation for 5 s Conditions that allow compensation input No key operation for 5 s · Depending on the output type of the model used, some parameters (indicated in ) are not displayed (and hence cannot be set). No key operation for 5 s · If the input mode is changed, all parameters will be reset to their initial values. Set the input mode first. Output mode Upper limit (H) of linear output range 0 Note 1: A number in the range 1 to 4 will be displayed. − No key operation for 5 s Lower limit (L) of linear output range − Settings displayed in reverse colors are defaults. No key operation for 5 s Remote/local programming / Up/Down Counting Meter K3NC C-151 • Measurement stops in Protect Mode. Power ON • Depending on the output type of the model used, some parameters (indicated in displayed (and hence cannot be set). ) are not RUN Mode Press the ESC Key and Up Key for 1 s. Protect menu prot Press the Mode Key for 1 s. Protect Mode All key protection Set value change prohibition all sUset (See note.) Key-protection ON: kpon Key-protection OFF: kpoff Menu display Press the Mode Key to display the parameter. Displayed only for models with comparative outputs. Setting: Next parameter: sUset Setting: Next parameter: reset Press the ESC Key to return to the menu. Setting: Next parameter: secr Setting: Next parameter: Menus protected in Setting Mode mm.rst Parameter display all prot Maximum/minimum value reset prohibition secr Note: Press the Shift Key to make it possible to set or change parameters. Meaning of parameter Setting range All key protection: All key operations are prohibited in RUN Mode. (If all key protection is ON, only the key for going to Protect Mode is enabled.) Set value change prohibition: Changes to comparative set values are prohibited in RUN Mode. (Displayed only for models with comparative outputs.) Use the Up Key to change the setting. ➤ kpon ➤ kpoff Use the Mode Key to enable the setkpon ting and move to the Key protection ON: next parameter. Key protection OFF: kpoff Reset prohibition: Resetting the counting value using the front panel keys is prohibited. (Resetting by external signals is not prohibited.) Menus protected in Setting Mode: Setting operations in Setting Mode are prohibited in the way shown below. Setting menu 0 1 Option menu × × × × Note: If there is no key operation for 5 seconds, the setting is automatically registered. Up/Down Counting Meter K3NC 1 ➤ 2 × Scaling menu Setup menu Use the Up Key to change the setting. Setting Set value menu C-152 Setting key (See note.) 0 /1/2 ➤ 2 ➤ 3 Use the Mode Key to enable the setting and move to the next parameter. ■ Troubleshooting When an error occurs, error details will be displayed in the PV display. Take the appropriate countermeasures according to the error displayed. Error contents Comparative output Output status BCD output Communications output Countermeasure Linear output m1.err (M1.ERR) Memory error m2.err (M2.ERR) OFF OFF (all outputs in "H" status) OFF OFF Reset the power. If the same error occurs, repair is necessary. m3.err (M3.ERR) OFF OFF (all outputs in "H" status) OFF OFF Reset the power while holding down the ESC Key, the Up Key, and the RESET/TEACH Key. The settings will be returned to their initial values. Redo the settings. If the same error occurs, repair is necessary. OFF OFF (all outputs in "H" status) OFF OFF (minimum value) Reset the power. If the same error occurs, repair is necessary. If normal operation is restored, it is possible that the original error was caused by the influence of noise. Check that there are no sources of noise in the vicinity. Continues Continues Continues The OVER signal The OVER or UNDER signal turns turns ON. ON. Take steps to ensure that the input values and display values are within the allowable ranges. Continues If an attempt to change a setting using key operations is made with the remote/local selection set to remote, this error will flash for 3 s. To enable settings to be changed, set the remote/local selection to local. err-o (ERR-O) chg-o (CHG-O) Output error (Display value flashes.) The input range and Continues display range were exceeded. The remote/local rmt (RMT) (Flashes for 3 s.) section is set to remote. Continues Continues Continues Up/Down Counting Meter K3NC C-153 Counters Error display