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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