External control output, Analog input-output function (optional), Clock function – Atec Yokogawa-cw240 User Manual
Page 6: Wiring error check function
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External control output
Input-output for start/stop control of integrated power measurement
Control input
: TTL level or contact
Control output
: TTL level
Analog input-output function (Optional)
Analog output
Output voltage
: ±1VDC for rated value of each range
Electric energy by output rate
Can be set magnification of 10/100 for harmonics
Frequency (0.4 to 0.7V)/ (40 to70Hz)
Number of output : 4CH
Output data
: Instantaneous value
(Select 4 items)
Voltage/Current/Ave. Voltage/Ave. Current/Active power/Reactive power/Apparent power/Power
factor/Phase angle/Frequency
Electric power
Active electric energy (Consumption/Regenerative)/ Reactive electric energy (Lag/Lead)
Harmonic
Harmonics level for each order/ Relative harmonic content of each order/ Relative harmonic phase angle/
Total value/ THD-F/THD-R
Accuracy :
±(
Measurement accuracy +0.2%f.s.)
Resolution
: Polarity + 11 bits
Updating of cycle : Except harmonic measurement: 1 cycle of input signal
Harmonic measurement elements: 16 cycle of input signal
Temperature coefficient
: less than ±0.02%f.s./℃
Output resistance : 22 Ω ±5%
Electric energy output rate
: Select from 1V/1kWh,1V/5kWh,1V/10kWh,1V/50kWh,1V/100kWh,1V/500kWh,
1V/1000kWh
Analog input
Input range
: 100mV/1V/5VDC
Number of input : 2CH
Accuracy
: ±0.5% f.s.
Resolution
: Polarity + 11 bits
Sampling rate
: About 20m sec.
Input resistance
: About 100k Ω
Clock function
Auto calendar/Leap year auto detection/24 hour clock
Actual time accuracy
: ±20ppm(Typ. , 23 ℃)
Wiring error check function
Voltage/Current input value, Voltage/Current phase difference, Check rightness of frequency measurement
Check single phase load connection for SCOTT wiring
Wiring diagram, Vector diagram display