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Up/Down Counting Meter
K3NC
* 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.
Counters
An Ideal Interface for High-speed Up/Down Counting and Serial Communications
Model Number Structure
I 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.
Base Units K3NC 1 2 3 4
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
Output Boards K31 5 6 7 8
L2: L3: L4:
Base Units with Output Boards K3NC 1 2 3 4 5 6 7 8
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)
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) Note: These output types are available on Basic Models only.
Up/Down Counting Meter
K3NC
C-131
Ordering Information
I Base Unit
Input type Supply voltage NPN/Voltage pulse 100 to 240 VAC K3NC-NB1A 12 to 24 VDC K3NC-NB2A K3NC-PB1A PNP 100 to 240 VAC 12 to 24 VDC K3NC-PB2A
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.
K3NC-NB1C
K3NC-NB2C
K3NC-PB1C
K3NC-PB2C
I Available Output Board Combinations
Output type Output configuration Output boards Base units Basic Relay contact Transistor BCD (see note) Linear 5 outputs: OUT1, 2, 4, 5 (SPST-NO), and OUT3 (SPDT) 5 outputs: OUT1, 2, 4, 5 (SPST-NC), and OUT3 (SPDT) 5 outputs (NPN open collector) 5 outputs (PNP open collector) 5-digit output (NPN open collector) 4 to 20 mA DC 1 to 5 VDC 1 mV/10 digits 0 to 5 VDC 0 to 10 VDC Communication boards (see note) Combination output and communication boards RS-232C RS-485 RS-422 BCD output + 5 transistor outputs (NPN open collector) 4 to 20 mA + 5 transistor outputs (NPN open collector) 1 to 5 V + 5 transistor outputs (NPN open collector) 1 mV/10 digits + 5 transistor outputs (NPN open collector) 0 to 5 VDC + 5 transistor outputs (NPN open collector) 0 to 10 VDC + 5 transistor outputs (NPN open collector) RS-232C + 5 transistor outputs (NPN open collector) RS-485 + 5 transistor outputs (NPN open collector) RS-422 + 5 transistor outputs (NPN open collector) Note: For details, refer to the Communication Operation Manual. K31-C2 K31-C5 K31-T1 K31-T2 K31-B2 K31-L1 K31-L2 K31-L3 K31-L7 K31-L8 K31-FLK1 K31-FLK2 K31-FLK3 K31-B4 K31-L4 K31-L5 K31-L6 K31-L9 K31-L10 K31-FLK4 K31-FLK5 K31-FLK6 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Set Value LED Display Yes Yes Yes Yes ------------------Yes Yes Yes Yes Yes Yes Yes Yes Yes
C-132
Up/Down Counting Meter K3NC
Specifications
I Ratings
Supply voltage Operating voltage range Power consumption (see note) Sensor power supply Insulation resistance Dielectric strength Noise immunity Vibration resistance Shock resistance Ambient temperature Ambient humidity EMC 100 to 240 VAC (50/60 Hz); 12 to 24 VDC 85% to 110% of supply voltage Counters 15 VA max. (max. AC load with all indicators lit) 10 W max. (max. DC load with all indicators lit) 80 mA at 12 VDC10% 20 M min. (at 500 VDC) between external terminal and case. Insulation provided between inputs, outputs, and power supply. 2,000 VAC for 1 min between external terminal and case. Insulation provided between inputs, outputs, and power supply. 1,500 V on power supply terminals in normal or common mode 1 s, 100 ns for square-wave noise with 1 ns 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 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 Operating: Storage: Operating: -10C to 55C (with no icing) -20C to 65C (with no icing) 25% to 85% (with no condensation)
(EMI) Emission Enclosure: Emission AC Mains: (EMS) Immunity ESD:
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) UL508, CSA22.2; Conforms to EN61326+A1, EN61010-1 (IEC61010-1) Conforms to VDE0106/P100 (finger protection) when the terminal cover is mounted. Approx. 400 g
Approved standards
Weight
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
I 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 s min., ON voltage: 4.5 to 30 V/OFF voltage: -30 to 2 V) Open collector (50 kHz max., ON/OFF pulse width: 9 s 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. Up/Down B (individual inputs), Up/Down C (phase difference inputs) ALL-H/ALL-L 5 digits (-19999 to 99999) 7-segment LED "-" is displayed automatically with a negative input signal. Leading zeros are not displayed. 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. 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 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 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) 1 ms max. (at transistor output), 10 ms max. (at relay output) Front panel: NEMA4 for indoor use (equivalent to IP66) Rear case: IEC standard IP20 Terminals: IEC standard IP00 Non-volatile memory (EEPROM) (possible to rewrite 100,000 times)
Input mode Output mode Max. displayed digits Display Polarity display Zero display Prescale function External control
Other functions
Output configuration
Delay in comparative outputs Degree of protection
Linear output response time 20 ms max.
Memory protection
I Input/Output Ratings
Relay Contact Output
(Incorporating a G6B Relay) Item Rated load Rated carry current Max. contact voltage Max. contact current Max. switching capacity Min. permissible load (P level, reference value) Mechanical life Electrical life (at an ambient temperature of 23C) Resistive load (cos = 1) 5 A at 250 VAC; 5 A at 30 VDC 5 A max. (at COM terminal) 380 VAC, 125 VDC 5 A max. (at COM terminal) 1,250 VA, 150 W 10 mA at 5 VDC 50,000,000 times min. (at a switching frequency of 18,000 times/hr) 100,000 times min. (at a rated load switching frequency of 1,800 times/hr) 375 VA, 80 W Inductive load (cos = 0.4, L/R = 7 ms) 1.5 A at 250 VAC, 1.5 A at 30 VDC
Transistor Output
Rated load voltage Max. load current Leakage current 12 to 24 VDC +10%/-15% 50 mA 100 A max.
C-134
Up/Down Counting Meter K3NC
BCD Output
I/O signal name Inputs REQUEST, COMPENSATION, RESET Input signal Input current with no-voltage input Signal level Outputs DATA, POLARITY, OVERFLOW, DATA VALID, RUN Rated load voltage Max. load current Leakage current Note: Logic method: negative logic Item 10 mA ON voltage: 1.5 V max. OFF voltage: 3 V min. 12 to 24 VDC +10%/-15% 100 A max. Counters 10 mA Rating No-voltage contact input
Linear Output
Item Resolution Output error Permissible load resistance 4,096 0.5% FS 600 max. 500 min. 1.5% FS 1 K min. 4 to 20 mA 1 to 5 V 1 mV/10 digits (see note)
Note: For the 1 mV/10-digit output, the output voltage changes for every 40 to 50 increment in the display value.
I Communications Specifications
Item Transmission method Synchronization method Baud rate Transmission code Communications Write Read RS-232C, RS-422 4-wire, half-duplex Start-stop synchronization 1,200/2,400/4,800/9,600/19,200/38,400 bps ASCII (7-bit) Comparative set value, prescaling value, remote/local programming, reset control, and other setting mode items excluding communications conditions. Process value, comparative set value, model data, error code, and others 2-wire, half-duplex RS-485
For details, refer to Communication Operation Manual.
Up/Down Counting Meter
K3NC
C-135
Connections
I Terminal Arrangement
Terminal Numbers Output unit Output unit Input unit 1 2 3 4 5 6 7 8 9 18 19 20 21 22 23 24 25 26 10 11 12 13 14 15 16 17
Input unit
Note: Terminals 7 to 13 are connected internally. Terminals 7 and 11 are mutually isolated.
Input Unit
NPN Inputs
External sensor 10 power supply (+) +12 V +12 V 3 10 k
Voltage Pulse Inputs
+12 V 590 820
PNP-input Models
External sensor power 10 supply (+) Input A Internal circuits 1 +12 V
Input A
1
820
Internal circuits
GND +12 V 590 820
+12 V GND 590 820 GND
Input B
2
GND 820
590
Input B
2
Input B
4 11
10 k
External sensor 11 power supply (-)
GND
External sensor 11 power supply (-)
GND
GND
NPN Open Collector Output (NPN Linear 2-wire Output)
Contact Output
Voltage Output
Input resistance: 10 k
Internal circuits
590
Input A
820
590 +12 V
PNP Open Collector Output
10 10 1
+12 V INA
11 2
INB
Contact
10 3 4
GND +12V
11 2 3 4
+12V 0V INA
10 1 2
11 3
INB 0V
11 1 2
INB 0V
1
4
3
4
INA
INA INB
NPN output sensor
Note: When the contact is shortcircuited, a current of approximately 13 mA will flow at a voltage of approximately 12 V.
Voltage pulse output sensor
PNP output sensor
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 terminal 3 and the - side to terminal 11.
C-136
Up/Down Counting Meter K3NC
Output Unit
K31-C1: Relay (3 Outputs)
Outputs (5 A max. at 250 VAC) H 18 19 20 21 PASS 22 23 24 L 25 26 H HH 18 19 20 21
K31-C2: Relay (5 Outputs)
Outputs (5 A max. at 250 VAC) LL PASS 22 23 L 24 25 26
K31-C5: Relay (5 Outputs)
Outputs (5 A max. at 250 VAC) H HH 18 19 20 21 PASS 22 23 L LL
K31-T1: Transistor (NPN Open Collector)
Outputs (50 mA max. at 24 VDC) HH 18 24 25 26 19 20 21 H 22 PASS 23 L 24 LL 25 COM 26
K31-T2: Transistor (PNP Open Collector)
Outputs (50 mA max. at 24 VDC) HH 18 19 20 21 H 22 PASS 23 L 24 LL 25 COM 26
K31-B2, -B4: BCD (NPN Open Collector) (Terminals 32 to 36 are provided only on K31-B4.
DATA OVERFLOW DATA VALID RUN COMMON REQUEST MAX. REQ. MIN. REQ. HOLD RESET POLARITY HH H PASS L LL COMMON
104
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
48
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
124812481248 1248 12 100 COMMON 101 102 103 104
Outputs (50 mA max. at 24 VDC) HH 21 H 22 PASS 23 L 24 LL 25 COM 26
K31-FLK1: RS-232C
14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 5 6 7 8 9 10 11 12 13
SD RD
Note:
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.)
Terminator RS-485 - 19 ON OFF 20 Outputs (50 mA max. at 24 VDC) HH 21 H 22 PASS 23 L 24 LL 25 COM 26
K31-FLK3, -FLK6: RS-422 (The right connector is provided only on K31-FLK6)
RS-422 RDA SDA Output NPN Tr. (50 mA max. at 24 VDC) LL
+
18
Terminator ON OFF
6789 12345
SG
6789 12345
RDB
SDB
* 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
K31-FLK4: RS-232C + Transistor (NPN Open Collector)
RS-232C Output NPN Tr. (50 mA max. at 24 VDC) LL
9876 54321
L PASS COM H HH
SG
SD RD
HH H COM PASS L
SG
9876 54321
Up/Down Counting Meter
K3NC
C-137
Counters
I Block Diagram
Power supply for sensor Sensor A Sensor B GND Input circuit Frequency measurement circuit Key switch LED
8-bit microcomputer
Output circuit
Control input Control input circuit
Waveform adjustment circuit Voltage stabilizing circuit
Control power supply Power supply circuit
Power supply for sensor (input circuit) Frequency measurement circuit Waveform adjustment circuit 8-bit microcomputer Control input circuit
Voltage stabilizing circuit Voltage stabilizing circuit
I Rotary Encoder Connection Example
0V
Phase A Phase B
INA/INB RESET
Counts input signals. Accepts Up/Down (individual or phase difference) inputs. 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 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 Selects one of the four banks. Bank no. Bank 1 1 2 3 4 OFF ON OFF ON OFF OFF ON ON Control input Bank 2
COMPENSATION
BANK 1, 2
Note: Bank switching minimum signal width: 100 ms max.
C-138
Up/Down Counting Meter K3NC
Operation
I Main 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
Counters 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
I 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 DATA VALID 40 ms Approx. 30 ms 16 ms All data "high" Data All data "high"
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) Programmable controller K3NC (2) REQ. (2) REQ. (3)
K3NC (1)
K3NC (3)
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.
DATA DATA VALID
(1)
(2)
(3)
*
*
*
*The period between the DATA VALID signal and the REQ signal should be no less than 20 ms max.
Continuous Data Output
REQ. DATA All data "high" DATA VALID 40ms Approx. 30 ms 64ms 40ms 24ms 64ms 24ms Data 1 Data 2
The K3NC outputs each measurement at an interval of 64 ms when a REQ signal is ON continuously.
Up/Down Counting Meter
K3NC
C-139
Example of Connection to Programmable Controller
K3NC PC (SYSMAC) DC Input Unit 1. COMMON COM
2. 1
IN
3. 2 10 4. 4
0
IN
5. 8
IN
23. DATA VALID
24. RUN
IN IN
25. COMMON
Transistor Output Unit OUT
26. REQUEST 240 +5 V 240 30. RESET 240 240 31. POLARITY (Polarity: +, -)
Internal circuit
Internal circuit +24 V DC power supply 0V Internal circuit
IN
OUT
COM (0 V) 24 VDC
C-140
Up/Down Counting Meter K3NC
Example of Connection to Display Unit
K3NC 1.COMMON 2.1 3.2 4.4 5.8
23.DATA VALID 24.RUN 101
102 25.COMMON 26.REQUEST +5V 240 30.RESET 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
Connected
240
240 240
8
8
8
SEC
M7E-01D@N2 or M7E-01H@N2
M7E Digital Display Unit
Up/Down Counting Meter
K3NC
C-141
Counters
100
I 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 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.
Set value 5 Set value 4 Set value 3 Set value 2 Set value 1 See note Measured value
ALL-L 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.
Set value 5 Set value 4 Set value 3 Set value 2 Set value 1 See note Measured value
Reset Compensation value Output 5 Output 4 Output 3 Output 2 Output 1
Reset Compensation value Output 5 Output 4 Output 3 Output 2 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.
I 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 Relay contact output NPN/PNP transistor output Reset input Compensation input Bank switch 3.0 to 10.0 ms 0.1 to 0.6 ms 12.0 to 16.0 ms 12.0 to 16.0 ms 60.0 to 100.0 ms Output or response delay time
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.
I Input Mode and Counting Values
u-d b : Up/Down B individual input
INA INB INA INB
u-d c : Up/Down C phase difference input
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 H L Open No-voltage input Short-circuit
C-142
Up/Down Counting Meter K3NC
Nomenclature
1. SV Display 7. Status Indicators
OUT5 OUT4 OUT3 OUT2 1 OUT 2 4 3 5
2. PV Display 3. Comparative Output Status Indicators 4. SV Display Status
8. Teaching Indicator
OUT1
5. ESC Key 6. Mode Key
Name 1. SV display 2. PV display 3. Comparative output status indicators 4. SV display status 5. ESC Key 6. Mode Key Displays the process value or parameter. Displays the status of comparative output. Indicates which comparative set value is currently on the SV display. Functions Displays the set value or parameter. Available for Set Value LED Models only.
9. RESET/TEACH Key
10. Up Key and Shift Key
Used to return to the RUN mode from the Setting, Protect or Maintenance mode. 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. RESET: Lit when the RESET input is ON. PROG: Lit or flashes while parameters are being set. Lit when the teaching function is enabled and flashes when the K3NC is in teaching operation. The counting value is reset by pressing this key. Teaching is available when the teaching function is enabled. The digit being set is scrolled by pressing the Shift Key. The set value increases by one whenever the Up Key is pressed.
7. Status indicator 8. Teaching indicator 9. RESET/TEACH Key 10. Up Key and Shift Key
Up/Down Counting Meter
K3NC
C-143
Counters
Engineering Data
Derating Curve for Sensor Power Supply
Max. current (mA)
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
45+0.8 -0 14.2 92+0.8 -0 8.2 75
OUT5 OUT4 OUT3 OUT2 OUT1 1 OUT 2 4 3 5
RESET
120
Note: The K3NC uses M3.5 terminals. A terminal cover is provided.
Up/Down Counting Meter
K3NC
C-145
Counters
Precautions
!WARNING
Do not touch any of the terminals while the power is being supplied. Doing so may result in electric shock.
I 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.
!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.
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.
!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.
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.
!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.
I 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.
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. Mount the Counting Meter as horizontally as possible.
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.
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).
Line filter Power input K3NC - Surge absorber
K3NC
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 - Two-conductor shield wire Processor
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.
Power input
+ Signal input
Up/Down Counting Meter
K3NC
C-147
Operating Procedures
I Operation in RUN Mode
Reset
RESET Press the RESET/TEACH Key /TEACH for 1 s min. to reset the counting value to 0. (Enabled when key protection is cleared.)
Bank Selection
BANK1 BANK2
Measurement value
RESET /TEACH
0
1 s min.
COM
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.)
* 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. Bank number 1 2 3 4 BANK 1 BANK 2 Comparat Prescaling ive set value value sU1.** sU2.** sU3.** sU4.** ps1.** ps2.** ps3.** ps4.**
OFF ON OFF ON
OFF OFF ON ON
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
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
Note: When a comparative set value is displayed, it can be changed using the Up Key
and Shift Key
(if key protection is OFF).
C-148
Up/Down Counting Meter K3NC
I Setting 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. Counters Used for making initial settings. Includes settings for four menus (Set value (sUset prescaling (pscl setup (setup option (opt and the output test. sUset), pscl), setup), opt)) sUset pscl setup opt Used for locking the front key operation or parameter changes. Used for initializing set values.
Setting Mode: Protect Mode: Maintenance Mode:
Power ON
When power is ON +
Maintenance mode
ESC
RUN mode
ESC
+
1s
ESC
1s
ESC
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
Protect mode
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 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
opt - Supplementary settings related to display or control memo compn con-p out lset.h lset.l r-l
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
I Initial Settings
Power ON
I Parameters
Power ON
Press the Mode Key Mode.
for 1 s min. to move to the Setting
RUN Mode Refer to Operation in RUN Mode.
Press the ESC Key Up Key for 1 s.
and
Select the setup menu ( ) with the Mode Key and set the input mode, the input type, and other settings.
Setting Mode
If required, set a prescale value in the prescaling menu ( ).
1s
Set value menu
Set comparative set values in the set value menu ( ).
1s
Comparative set value bank
-
Make settings in the option menu (
) as required.
No key operation for 5 s
(See note 1.)
Comparative set value OUT1 No key operation for 5 s
-
0
-
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
-
0
-
(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
-
0
-
(See note 1.)
Measurement starts. Relationship between Input Mode and Counting Value
: Up/Down B (individual inputs) INA INB H L H L
Comparative set value OUT4 No key operation for 5 s
-
0
-
(See note 1.)
Comparative set value OUT5 No key operation for 5 s
-
0
-
3
Counting value
3 2 1 1 2
2 1 0
Note 1: The meaning of H and L in the graphs:
Symbol
No-voltage input
Output test
0
H L H L
: Up/Down C (phase difference inputs) INA INB
H L
Closed Open
3
Counting value
3 2 1 2
2 1 0
2: At least 1/2 of the first signal width is required for B. Otherwise a counting error of 1 may occur.
0
Selecting the Sensor Type NO: Voltage pulse H
No-contact or voltage pulse input Contact input
NC: Voltage pulse L
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.
0.5 m
250 pulses
K3NC
Encoder
C-150
Up/Down Counting Meter K3NC
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
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.
Prescaling menu
1s
Setup menu
1s Input mode
-
Prescale value bank
(See note 1.)
No key operation for 5 s
u-d
b u-d c b/u-d
No key operation for 5 s
Sensor type
- -
Input A prescale value mantissa
(See note 1.)
No key operation for 5 s
No key operation for 5 s
Communications unit number
- -
-
Input A prescale value exponent
No key operation for 5 s
No key operation for 5 s
(See note 1.)
Baud rate
-
1200/2400/4800/ 9600 /19200/38400bps
No key operation for 5 s
Decimal point
No key operation for 5 s
Word bit length
7 /8bit
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
-
0
-
* 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. * 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. Note 1: A number in the range 1 to 4 will be displayed. Settings displayed in reverse colors are defaults.
No key operation for 5 s Conditions that allow compensation input No key operation for 5 s
Output mode
No key operation for 5 s Upper limit (H) of linear output range
-
No key operation for 5 s Lower limit (L) of linear output range No key operation for 5 s
-
Remote/local programming
/
Up/Down Counting Meter
K3NC
C-151
Counters
count
u-d c
Change the set value using the Up Key and the Shift Key .
Power ON
* Measurement stops in Protect Mode. * 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 Mode
Protect menu
All key protection Press the Mode Key for 1 s.
Set value change prohibition
Maximum/minimum value reset prohibition
prot
all
(See note.)
sUset
Displayed only for models with comparative outputs.
mm.rst
Menus protected in Setting Mode
secr
Key-protection ON: kpon Key-protection OFF: kpoff
Note: Press the Shift Key to make it possible to set or change parameters.
Menu display
Parameter display
Meaning of parameter 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.) 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 Set value menu Scaling menu Setup menu Option menu x Setting 1 2 x x x x
Setting range
Setting key (See note.) Use the Up Key to change the setting.
prot
Press the Mode Key to display the parameter.
all
Setting:
Next parameter:
kpon
kpoff
sUset
Setting:
Next parameter:
Use the Mode Key to enable the setkpon ting and move to the Key protection ON: next parameter. Key protection OFF: kpoff
reset
Press the ESC Key to return to the menu.
Setting:
Next parameter:
secr
Setting:
Use the Up Key to change the setting.
Next parameter:
1
2
3
0 /1/2
Use the Mode Key to enable the setting and move to the next parameter.
Note: If there is no key operation for 5 seconds, the setting is automatically registered.
C-152
Up/Down Counting Meter K3NC
I Troubleshooting
When an error occurs, error details will be displayed in the PV display. Take the appropriate countermeasures according to the error displayed. Error display Error contents Output status m1.err (M1.ERR) Memory error m2.err (M2.ERR) m3.err (M3.ERR) OFF OFF Comparative output BCD output OFF (all outputs in "H" status) OFF (all outputs in "H" status) Communications output OFF OFF Linear output OFF OFF Reset the power. If the same error occurs, repair is necessary. 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. 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. Take steps to ensure that the input values and display values are within the allowable ranges. 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. Counters Countermeasure
err-o (ERR-O) chg-o (CHG-O)
Output error
OFF
OFF (all outputs in "H" status)
OFF
OFF (minimum value)
(Display value flashes.)
The input range and Continues display range were exceeded. Continues
Continues Continues Continues The OVER signal The OVER or UNDER signal turns turns ON. ON. Continues Continues Continues
The remote/local rmt (RMT) (Flashes for 3 s.) section is set to remote.
Up/Down Counting Meter
K3NC
C-153

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