SanRex CALPOTE UG Series, Instruction Manual, Page: 84 / 97

84
Symptom Item to check Action
The detection
value display
does not
match the
measured
value.
Are the rated value settings correct? Review the [F0: Rated
value] setting.
Is the secondary-side rated current of the
main circuit CT 5 A?
Review the [F0: Rated
value] setting in terms of
the secondary-side rated
current of 5 A.
Has the correction been performed for the
conversion board?
The correction needs to be performed when
the conversion board is installed or replaced.
Correct the detection value
according to “11.2.3
Detection value adjustment
function.”
The output
cannot be
fully
controlled.
Are the detection lines open? Check the wiring.
If constant power control is used, are the
external CT, main circuit CT, and external PT
polarities correct?
Check the polarities.
A THY error
has occurred.
Are the PT and CT detection lines
connected?
Check the wiring.
A load error
has occurred.
Is the PT detection line connected? Check the wiring.
The settings
cannot be
changed.
Is [F702: SAVE key lock] ON? Set it to [0: Unlock].
Is the unit operating? Some function settings
cannot be changed during
operation. See the list.
The cooling
fan does not
rotate.
Is the unit stopped? The fan is designed to
rotate only during
operation.
Has dust accumulated on the cooling fan? Remove dust using
compressed air or other
tools.
Has the relay connector been left removed
since replacement?
Connect it correctly.