8
13. Checks for Failure
If you think a failure has occurred, first stop the operation of this product. Disconnect the AC input cable from the outlet or
turn off the input power supply circuit breaker. Using a voltmeter, check that there is no voltage remaining on the output.
Check the I/O and optional wiring. After that, turn on the input power supply again and restart this product. Check the
following items.
They are not always the fault of the product, so please carry out the confirmation according to the check points before
requesting the repair services.
Problem
Check point
None of output or desired
output value is achieved.
☐
Are the input voltage as well as the wiring method correct?
☐
Is connection or wiring to the load correct?
☐
Is protection enable? Is setting value correct?
☐
Is the product in remote control mode?
☐
Is remote sensing terminal connected correctly?
☐
Is any output waveform error, such as vibration or oscillation, generated when a
capacitive or inductive load is connected?
Fuse blows or breaker trips.
☐
Were the screws in the housing replaced?
(A screw may have fallen into the unit.)
☐
Is the capacity of the input power supply circuit breaker enough?
Output voltage fluctuates or
gets out of control.
☐
Is the product in remote control mode?
☐
Is the remote sensing terminal connected correctly?
☐
Is the LOCK function working?
