K3NC

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Up/Down Counting Meter K3NC C-131 Counters Up/Down Counting Meter K3NC 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 IModel Number Legend Base Units and Output Boards can be ordered individually or as sets. Refer to the Output Board Combinations table on page 132. 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: SPST - NO; OUT3: SPDT) C5: 5 comparative relay contact outputs (OUT1, 2, 4, 5: SPST - NC; 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) L2: Linear output (1 to 5 VDC) (see note) L3: Linear output (1 mV/10 digits) (see note) L4: Linear output, 4 to 20 mA + 5 transistor outputs (NPN open collector) L5: Linear output, 1 to 5 V + 5 transistor outputs (NPN open col- lector) 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. 123 4 1 23 45 67 85 678 K3NC - Base Units K3NC - - Base Units with Output Boards K31 - Output Boards

C-132 Up/Down Counting Meter K3NC

Ordering Information

IAvailable Output Board Combinations Note: For details, refer to the Communication Operation Manual. Input type NPN/Voltage pulse PNP Supply voltage 100 to 240 VAC 12 to 24 VDC 100 to 240 VAC 12 to 24 VDC K3NC-NB1A K3NC-NB2A K3NC-PB1A K3NC-PB2A K3NC-NB1C K3NC-NB2C K3NC-PB1C K3NC-PB2C Output type Output configuration Output boards Base units Basic Set Value LED Display Relay contact 5 outputs: OUT1, 2, 4, 5 (SPST -NO), and OUT3 (SPDT) K31-C2 Y es Y es 5 outputs: OUT1, 2, 4, 5 (SPST -NC), and OUT3 (SPDT) K31-C5 Y es Y es Transistor 5 outputs (NPN open collector) K31-T1 Y es Y es 5 outputs (PNP open collector) K31-T2 Y es Y es BCD (see note) 5-digit output (NPN open collector) K31-B2 Y es --- Linear 4 to 20 mA DC K31-L1 Y es --- 1 to 5 VDC K31-L2 Y es --- 1 mV/10 digits K31-L3 Y es --- 0 to 5 VDC K31-L7 Y es --- 0 to 10 VDC K31-L8 Y es --- Communication boards (see note) RS-232C K31-FLK1 Y es --- RS-485 K31-FLK2 Y es --- RS-422 K31-FLK3 Y es --- Combination output and communication boards BCD output + 5 transistor outputs (NPN open collector) K31-B4 Y es Y es 4 to 20 mA + 5 transistor outputs (NPN open collector) K31-L4 Y es Y es 1 to 5 V + 5 transistor outputs (NPN open collector) K31-L5 Y es Y es 1 mV/10 digits + 5 transistor outputs (NPN open collector) K31-L6 Y es Y es 0 to 5 VDC + 5 transistor outputs (NPN open collector) K31-L9 Y es Y es 0 to 10 VDC + 5 transistor outputs (NPN open collector) K31-L10 Y es Y es RS-232C + 5 transistor outputs (NPN open collector) K31-FLK4 Y es Y es RS-485 + 5 transistor outputs (NPN open collector) K31-FLK5 Y es Y es RS-422 + 5 transistor outputs (NPN open collector) K31-FLK6 Y es Y es 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. 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.

Up/Down Counting Meter K3NC C-133 Counters Specifications IRatings 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 K3 NC has been just turned ON or is operating for startup compensation time), the display will read “00000” and all outputs will be OFF . Supply voltage 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/s 2 for 3 times each in X, Y , and Z directions Destruction: 294 m/s 2 for 3 times each in X, Y , and Z directions Ambient temperature Operating: −10°C to 55°C (with no icing) Storage: −20°C to 65°C (with no icing) Ambient humidity Operating: 25% to 85% (with no condensation) EMC (EMI) EN61326+A1 Industry Emission Enclosure: CISPR 11 Group 1 class A: CISRP16-1/-2 Emission AC Mains: CISPR 11 Group 1 class A: CISRP16-1/-2 (EMS) EN61326+A1 Industry Immunity ESD: 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 T ransient 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) 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

C-134 Up/Down Counting Meter K3NC ICharacteristics IInput/Output Ratings Relay Contact Output (Incorporating a G6B Relay) Transistor Output 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) COMPENSA TION: 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) T ransistor 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 T erminals: IEC standard IP00 Memory protection Non-volatile memory (EEPROM) (possible to rewrite 100,000 times) Item Resistive load (cos φ = 1) Inductive load (cos φ = 0.4, L/R = 7 ms) Rated load 5 A at 250 VAC; 5 A at 30 VDC 1.5 A at 250 VAC, 1.5 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 375 VA, 80 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) Rated load voltage 12 to 24 VDC +10%/-15% Max. load current 50 mA Leakage current 100 µA max.

Up/Down Counting Meter K3NC C-135 Counters BCD Output Note: Logic method: negative logic Linear Output Note: For the 1 mV/10-digit output, the output voltage changes for every 40 to 50 increment in the display value. ICommunications Specifications For details, refer to Communication Operation Manual. I/O signal name Item Rating Inputs REQUEST , COMPENSA TION, RESET 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. Outputs DA T A, POLARITY , OVERFLOW, DA T A VALID, RUN Rated load voltage 12 to 24 VDC +10%/-15% Max. load current 10 mA Leakage current 100 µA max. Item 4 to 20 mA 1 to 5 V 1 mV/10 digits (see note) Resolution 4,096 Output error ±0.5% FS ±1.5% FS Permissible load resistance 600 Ω max. 500 Ω min. 1 K Ω min. Item RS-232C, RS-422 RS-485 Transmission method 4-wire, half-duplex 2-wire, half-duplex Synchronization method Start-stop synchronization Baud rate 1,200/2,400/4,800/9,600/19,200/38,400 bps Transmission code ASCII (7-bit) Communications 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

C-136 Up/Down Counting Meter K3NC Connections ITerminal Arrangement Input Unit 18 19 20 21 22 23 24 25 26 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 Terminal Numbers Output unit Input unit Output unit Input unit Note: Terminals 7 to 13 are connected internally. Terminals 7 and 11 are mutually isolated. +12 V+12 V 590 Ω 590 Ω 820 Ω 820 Ω +12 V GND GND +12 V 590 Ω 820 Ω GND 10 k Ω +12 V 590 Ω 820 Ω GND 10 k Ω +12 V +12 V 590 Ω 820 Ω

11 GND GND

590 Ω 820 Ω External sensor power supply (+) Input A Input B External sensor power supply (−) Internal circuits Voltage Pulse Inputs Input A Input B Internal circuits PNP-input Models External sensor power supply (+) Input A Input B External sensor power supply (−) Internal circuits NPN Inputs 10 11 1234 +12 V INA INB 0 V 10 11 1234 INA INB GND 10 11 1234+12V INA INB 0 V +12V INA INB 0 V 10 11 1234 Contact NPN output sensor PNP output sensor Contact Output Voltage Output PNP Open Collector OutputNPN Open Collector Output (NPN Linear 2-wire Output) Note: Connect the + side of the NPN linear 2-wire input to terminal 1 and the − side to terminal 11. Note: With voltage pulse input not from a 3-wire sensor, connect the + side to ter- minal 3 and the − side to terminal 11. Note: When the contact is short- circuited, a current of approxi- mately 13 mA will flow at a volt- age of approximately 12 V. Input resistance: 10 kΩ Voltage pulse output sensor

Up/Down Counting Meter K3NC C-137 Counters Output Unit 18 19 20 21 22 23 24 25 26 18 19 20 21 22 23 24 25 26 18 19 20 21 22 23 24 25 26 18 19 20 21 22 23 24 25 26 K31-C1: Relay (3 Outputs) Outputs (5 A max. at 250 VAC) H PASS L K31-C2: Relay (5 Outputs) Outputs (5 A max. at 250 VAC) K31-C5: Relay (5 Outputs) Outputs (5 A max. at 250 VAC) HH PASS L LLH HH PASS L H LL K31-T1: Transistor (NPN Open Collector) Outputs (50 mA max. at 24 VDC) HH H PASS L LL COM + − 18 19 20 21 22 23 24 25 26 18 19 20 21 22 23 24 25 26 100 101 102 103 104 104 12 4812 48 1248 1248 1 2 123456789 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 K31-T2: Transistor (PNP Open Collector) Outputs (50 mA max. at 24 VDC) HH H PASS L LL COM K31-B2, -B4: BCD (NPN Open Collector) (Terminals 32 to 36 are provided only on K31-B4. Outputs (50 mA max. at 24 VDC) HH H PASS L LL COM COMMON DATA OVERFLOW DATA VALID RUN COMMON REQUEST MAX. REQ. MIN. REQ. HOLD RESET POLARITY HH H PASS L LL COMMONK31-L1, L2, L3,-L4, -L5, -L6, -L7, -L8, -L9, -L10: Linear (Terminals 21 to 26 are provided only on K31-L4, 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 Note: With K31-L4/-L5/-L6/-L9/-L10 models, terminals 19 and 26 are connected internally. SD RD SG 123456789 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 K31-FLK1: RS-232C + − 18 19 20 21 22 23 24 25 26 RDA SDA RDB SDB SG 2345 78 9 6 12345 78 9 K31-FLK2, -FLK5: RS-485 (Terminals 21 to 26 are provided only on K31-FLK5.) HH H PASS L LL COM RS-485 Terminator ON OFF Outputs (50 mA max. at 24 VDC) K31-FLK3, -FLK6: RS-422 (The right connector is provided only on K31-FLK6) ON OFF K31-FLK4: RS-232C + Transistor (NPN Open Collector) RS-232C LLHH L COM H PASS Terminator RS-422

• 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 K31- FLK6) (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 Output NPN Tr. (50 mA max. at 24 VDC) Output NPN Tr. (50 mA max. at 24 VDC) L H PASS HH 4321 87 6 LL RD SD SG COM 4321 87 6

C-138 Up/Down Counting Meter K3NC IBlock Diagram IRotary Encoder Connection Example Input circuitSensor A Sensor B GND Control input Frequency measurement circuit Waveform adjustment circuit 8-bit microcomputer Control input circuit Power supply for sensor Control power supply Control input circuit Power supply circuit Frequency measurement circuit Waveform adjustment circuit Voltage stabilizing circuit Voltage stabilizing circuit Voltage stabilizing circuit LEDKey switch 8-bit microcomputer Output circuit Power supply for sensor (input circuit) 0 V 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 Bank 2 1O F F O F F 2O N O F F 3O F F O N 4O N O N Note: Bank switching minimum signal width: 100 ms max.

Up/Down Counting Meter K3NC C-139 Counters Operation IMain Functions Linear Output Range lset 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. Remote/Local Selection r-l Select remote programming when performing all settings through the host devices and select local programming when performing settings through key operation.IBCD 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 Approximately 30 ms after the REQ signal rises, a sample is taken and the DA T A VALID signal is output. Read the data when the D ATA VA L I D signal is ON. The DA T A 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. Continuous Data Output The K3NC outputs each measurement at an interval of 64 ms when a REQ signal is ON continuously. 20 mA 4 mA Display Output Lower limit Upper limit For the 4- to 20-mA output type 40 ms 16 ms All data "high" All data "high" Data Approx. 30 ms DATA REQ. DATA VALID Pulse with a width of no less than 20 ms. (no more than 50 ms.) (1) (2) (3) ** * K3NC (1) K3NC (2) K3NC (3) DATA Programmable controller DATA (incl. POL and OVER) and DATA VALID are wired-OR processed. The RUN, OUT5, OUT4, OUT3, OUT2, and OUT1 sig- nals are always output regard- less of the status of the REQ signal. Do not OR-wire these signals. REQ. (1) REQ. (2) REQ. (3) DATA VALID *The period between the DATA VALID signal and the REQ signal should be no less than 20 ms max. 40ms 40ms 64ms 64ms24ms 24ms All data "high" REQ. DATA Data 1 Data 2 Approx. 30 ms DATA VALID

C-140 Up/Down Counting Meter K3NC Example of Connection to Programmable Controller

24 VDC

1. 1 3. 2 4. 4 5. 8 COM 240 Ω 240 Ω 240 Ω 240 Ω +5 V +24 V 0 V COM (0 V) DC power supply 30. RESET 31. POLARITY 26. REQUEST 25. COMMON 24. RUN 1. COMMON IN IN IN IN IN IN OUT OUT K3NC Transistor Output Unit DC power supply Internal circuit Internal circuit Internal circuit 23. DATA VALID (Polarity: +, −) PC (SYSMAC) DC Input Unit

Up/Down Counting Meter K3NC C-141 Counters Example of Connection to Display Unit V O SEC 2.1 3.2 4.4 5.8 100 240 Ω 240 Ω 240 Ω 240 Ω +5V V O D C B A DP LE V O D C B A DP LE V O D C B A DP LE 102 K3NC 1.COMMON 23.DATA VALID 24.RUN 25.COMMON 26.REQUEST 30.RESET 31.POLARITY 101 Connected (Polarity: +, −) M7E-01D@N2 or M7E-01H@N2 M7E Digital Display Unit

C-142 Up/Down Counting Meter K3NC IOutput 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. While the reset signal is ON, the counting value will return to zero. 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. IOutput 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 rel ay connected to the K3NC. 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. IInput Mode and Counting Values 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. ALL-H ALL-L Note: Set value 2 < compensation value < set value 3 Note: Set value 2 < compensation value < set value 3 Measured value Set value 5 Set value 4 Set value 3 Set value 2 Set value 1 Reset Output 5 Output 4 Output 3 Output 2 Output 1 See note Measured valueSet value 5 Set value 4 Set value 3 Set value 2 Set value 1 Reset Output 5 Output 4 Output 3 Output 2 Output 1 See note 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. Compensation value 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. Compensation value 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 u-d b : Up/Down B individual input u-d c : Up/Down C phase difference input Signal No-voltage input H Short-circuit LO p e n INA INB Counting value INA INB Counting value

Up/Down Counting Meter K3NC C-143 Counters Nomenclature 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. T eaching 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. OUT5 OUT4 OUT3 OUT2 OUT1 1 2 3 4 5OUT 1. SV Display 2. PV Display 4. SV Display Status 5. ESC Key 6. Mode Key 7. Status Indicators 8. Teaching Indicator 9. RESET/TEACH Key 10. Up Key and Shift Key 3. Comparative Output Status Indicators

C-144 Up/Down Counting Meter K3NC Engineering Data Derating Curve for Sensor Power Supply Max. current (mA) Ambient temperature (°C) Note: The derating curve shown is for standard installation. The derating curve depends on the mounting direction.

Up/Down Counting Meter K3NC C-145 Counters Dimensions Note: All units are in millimeters unless otherwise indicated. 92+0.8 45+0.8 120 14.2 8.2 OUT5 OUT4 OUT3 OUT2 OUT1 RESET OUT 12 3 Panel Cutouts PV Display Note: The K3NC uses M3.5 terminals. A terminal cover is provided.

C-146 Up/Down Counting Meter K3NC Precautions !WARNING Do not touch any of the terminals while the power is being sup- plied. 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 explo- sive gases. Doing so may result in explosion. !Caution The lifetime of output relays varies greatly with the switching ca- pacity 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 depos- it 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. Discrep- ancies 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. IApplication 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. ICorrect 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 prod- uct, have a lifetime that is dependent on the lifetime of internal elec- tronic components, as opposed to the lifetime related to the number of relay switching operations. The lifetime of these components var- ies 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 humid- ity levels above the specified ranges, or in locations subject to con- densation. Do not use the product in locations subject to severe shocks or vibra- tions. 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 sun- light. 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 sys- tem 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 applica- tion. Mounting Recommended panel thickness is 1 to 3.2 mm. Panel

Up/Down Counting Meter K3NC C-147 Counters Attach the mounting bracket on the left and right sides of the Count- ing Meter as shown in the illustration above and gradually tighten each screw evenly in turn by considering the balance of the tighten- ing force until the ratchets start slipping without being further tight- ened. Mount the Counting Meter as horizontally as possible. Waterproof Specifications 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, trans- formers, solenoids, and magnet coils). 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 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. 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. Line filter Power input Power input Surge absorber Signal input K3NC K3NC Two-conductor shield wire Signal input Processor

C-148 Up/Down Counting Meter K3NC Operating Procedures IOperation in RUN Mode Reset Press the RESET/TEACH Key for 1 s min. to reset the counting value to 0. (Enabled when key protection is cleared.) 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 Selection  Switch between the comparative set values and the prescaling val- ues 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. Note: If the prescale value bank is set to OFF , then the prescaling val- ue 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.) Note: When a comparative set value is displayed, it can be changed using the Up Key and Shift Key (if key protection is OFF). RESET /TEACH RESET /TEACH 1 s min. Measurement value Bank number BANK 1 BANK 2 Comparat ive set value Prescaling value 1O F F O F F sU1. ps1. 2O N O F F sU2. ps2. 3O F F O N sU3. ps3. 4O N O N sU4. ps4. BANK1 BANK2 COM Measurement value Comparative set value OUT1 Comparative set value OUT2 Comparative set value OUT3 Comparative set value OUT4 Comparative set value OUT5 No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s

Up/Down Counting Meter K3NC C-149 Counters ISetting Procedures 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. 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 (sUsetsUsetsUsetsUset), prescaling (psclpsclpsclpscl), setup (setupsetupsetupsetup), option (optoptoptopt)) and the output test. Protect Mode: Used for locking the front key operation or parameter changes. Maintenance Mode: Used for initializing set values. sUsetsUsetsUsetsUset - Program set values sUsUsUsU*.01.01.01.01 Enter set value OUT1 of bank 1 sUsUsUsU*.02.02.02.02 Enter set value OUT2 of bank 1 sUsUsUsU*.03.03.03.03 Enter set value OUT3 of bank 1 sUsUsUsU*.04.04.04.04 Enter set value OUT4 of bank 1 sUsUsUsU*.05.05.05.05 Enter set value OUT5 of bank 1 Note: The above is an example when the bank number is set to 1. psclpsclpsclpscl - Display prescaling pspspsps*.ax.ax.ax.ax Set the mantissa (X) of the prescale value pspspsps*.ay.ay.ay.ay Set the exponent (Y) of the prescale value decp.decp.decp.decp.* Select decimal point Note: The above is an example when the bank number is set to 1. setupsetupsetupsetup - Program input mode/input sensor/serial communications countcountcountcount Specify input mode inininin Select a sensor type u-nou-nou-nou-no Enter the unit no. for the host bpsbpsbpsbps Select the baud rate lenlenlenlen Select the word bit length sbitsbitsbitsbit Select the stop bits prtyprtyprtyprty Select the parity bits optoptoptopt - Supplementary settings related to display or control memomemomemomemo Select power failure memory function compncompncompncompn Set compensation value con-pcon-pcon-pcon-p Select conditions that allow compensation input outoutoutout Select output mode lset.hlset.hlset.hlset.h Enter the upper limit (H) of linear output range lset.llset.llset.llset.l Enter the lower limit (L) of linear output range r-lr-lr-lr-l Select the remote/local programming testtesttesttest - Generating simulated input for testing the output function protprotprotprot - Program lock-out configuration allallallall Enable all key protection sUsetsUsetsUsetsUset Enable set value change prohibition resetresetresetreset Enable prohibition of counting value reset using the front panel keys secrsecrsecrsecr Specify the menus to be protected against setting in the setting mode 1 s 1 s ESC ESC ESC ESC Power ON RUN mode Setting mode Maintenance mode Protect mode When power is ON

C-150 Up/Down Counting Meter K3NC IInitial Settings IParameters L L H HINA INB L L H HINA INB H L K3NC 0.5 m − − − − Measurement starts. Relationship between Input Mode and Counting Value NO: Voltage pulse H NC: Voltage pulse L No-contact or voltage pulse input Contact input Selecting the Sensor Type Counting value : Up/Down B (individual inputs) : Up/Down C (phase difference inputs) Note 1: The meaning of H and L in the graphs: Symbol No-voltage input Closed Open Encoder 250 pulses Power ON Press the Mode Key for 1 s min. to move to the Setting Mode. Select the setup menu ( ) with the Mode Key and set the input mode, the input type, and other settings.If required, set a prescale value in the prescaling menu ( ). Set comparative set values in the set value menu ( ). Make settings in the option menu ( ) as required. If necessary, generate simulated input for testing the output function in output test ( ). After completing all the settings, press the ESC Key to return to RUN Mode. Counting value 2: At least 1/2 of the first signal width is required for B. Otherwise a counting error of ±1 may occur. Power ON RUN Mode Refer to Operation in RUN Mode. 1 s Press the ESC Key and Up Key for 1 s. Setting Mode Set value menu 1 s Comparative set value bank No key operation for 5 s Comparative set value OUT1 Output test (See note 1.) (See note 1.) (See note 1.) (See note 1.) (See note 1.) Comparative set value OUT2 Comparative set value OUT3 Comparative set value OUT4 Comparative set value OUT5 No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s 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 10 X = 2.0000, Y = 00 2. Set the decimal point to the left of the rightmost digit.

Up/Down Counting Meter K3NC C-151 Counters 1200/2400/4800/ 9600 /19200/38400bps u-d bu-d b/u-d cu-d c countcount u-d cu-d c − − − − Prescale value bank Decimal point Input mode Parity bits Input A prescale value mantissa Input A prescale value exponent Communications unit number Baud rate Word bit length Stop bits Sensor type Power failure memory Output mode Compensation value 7 /8bit 1/ 2 bit

• In the Setting Mode, the measurement value is reset (i.e., to 0) and outputs turn OFF.
• Depending on the output type of the model used, some parameters (indicated in ) are not displayed (and hence cannot be set).
• If the input mode is changed, all parameters will be reset to their initial values. Set the input mode first. Protect Mode Prescaling menu 1 s Setup menu 1 s No key operation for 5 s Remote/local programming 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 Next parameter If there is no key operation for 5 seconds, the setting is registered and the parameter is displayed again. PROG flashes. Change the set value using the Up Key and the Shift Key . Settings displayed in reverse colors are defaults. Option menu No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s (See note 1.) (See note 1.) (See note 1.) No key operation for 5 s 1 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s Note 1: A number in the range 1 to 4 will be displayed.
• The measurement value will be reset if the Setting Mode is entered during measurement.Conditions that allow compensa- tion input Upper limit (H) of linear out- put range Lower limit (L) of linear out- put range

C-152 Up/Down Counting Meter K3NC Note: If there is no key operation for 5 seconds, the setting is automatically registered. prot all sUset mm.rst secrprotprot allall sUsetsUset mm.rstmm.rst secrsecr kponkpon kpoffkpoff Protect Mode Press the ESC Key and Up Key for 1 s.

• Measurement stops in Protect Mode.
• Depending on the output type of the model used, some parameters (indicated in ) are not displayed (and hence cannot be set). Protect menu Press the Mode Key for 1 s. All key protection Set value change prohibition Maximum/minimum value reset prohibition Menus protected in Setting Mode (See note.) Displayed only for models with comparative outputs. Note: Press the Shift Key to make it possible to set or change parameters. Power ON RUN Mode Key-protection ON: Key-protection OFF: Menu display Parameter display Meaning of parameter Setting range Setting key (See note.) 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.) Use the Up Key to change the setting. Use the Mode Key to enable the set- ting and move to the next parameter. Set value change prohibition: Changes to comparative set values are prohibited in RUN Mode. (Dis- played only for models with compara- tive outputs.) 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 be- low. Use the Up Key to change the setting. Use the Mode Key to enable the set- ting and move to the next parameter. Setting menu Setting 012 Set value menu × Scaling menu × Setup menu ×× Option menu × prot all sUset resetreset protprot allall sUsetsUset secrsecrsecr Setting: Next parameter: Press the ESC Key to return to the menu. Press the Mode Key to display the parameter. Setting: Next parameter: Setting: Next parameter: Setting: Next parameter: kponkpon kpoffkpoff Key protection ON: Key protection OFF: kpon kpoffkpon kpoff➤ ➤ 00 /1/2 1 2 31 2 3➤ ➤ ➤

Up/Down Counting Meter K3NC C-153 Counters ITroubleshooting When an error occurs, error details will be displayed in the PV display. T ake the appropriate countermeasures according to the error displayed. Error display Error contents Comparative output Countermeasure Output status BCD output Communications output Linear output Memory error OFF OFF (all outputs in "H" status) OFF OFF Reset the power. If the same error occurs, repair is necessary. in "H" status) OFF OFF Reset the power while holding down the ESC Key, the Up Key, and the RESET/TEACH Key. The set- tings will be returned to their initial values. Redo the settings. If the same error occurs, repair is neces- sary. err-oerr-oerr-oerr-o (ERR-O) chg-ochg-ochg-ochg-o (CHG-O) Output error OFF OFF (all outputs in "H" status) OFF OFF (minimum value) Reset the power. If the same error occurs, repair is necessary. If nor- mal operation is restored, it is pos- sible that the original error was caused by the influence of noise. Check that there are no sources of noise in the vicinity. (Display value flashes.) The input range and display range were exceeded. Continues Continues The OVER signal turns ON. Continues The OVER or UN- DER signal turns ON. Continues T ake steps to ensure that the input values and display values are with- in the allowable ranges. rmtrmtrmtrmt (RMT) (Flashes for 3 s.) The remote/local section is set to re- mote. Continues Continues Continues Continues If an attempt to change a setting using key operations is made with the remote/local selection set to re- mote, this error will flash for 3 s. T o enable settings to be changed, set the remote/local selection to local.