K3NC Datasheet, PDF (4/23 Pages) Omron Electronics LLC – Up/Down Counting Meter

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 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)
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 23°C)
Resistive load (cosφ = 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
Inductive load (cosφ = 0.4, L/R = 7 ms)
1.5 A at 250 VAC, 1.5 A at 30 VDC
375 VA, 80 W
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)
Transistor Output
Rated load voltage
Max. load current
Leakage current
12 to 24 VDC ^+10%/_-15%
50 mA
100 µA max.
C-134 Up/Down Counting Meter K3NC