Alarm Code #207
Model CPE52, 53, 14, 15, 15V, 16
Failure Power source open phase failure
Countermeasure
<< Cause –(6) >> (2/2)
CT1, CTM current sensors shift failure
< Check –(2) > ( Refer to Page F-10, 22 )
Check the current on CT1, CTM with the personal computer or a clamp meter.
And check if the relative difference ( CT1-CTM ) is larger than the following current value.
•CPE52, 53 : approx. 8A ( at 440V )
•CPE14, 15, 15V, 16 : approx. 10A ( at 440V )
In case the difference is larger than the above value, check the relation between
the current of CT1 or CTM and the AC output voltage according to the formula
shown on the next display.
< Action >
Out of allowable range : Replace the current sensor.
--- Continue to Next Display ---
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