Self-Diagnostic Function - SanRex CALPOTE UF-1 Series Instruction Manual

Self-diagnostic function

This function is provided somewhat differently depending on the combination with a conversion board
(optional).
Without conversion
board
In running In stopping
Thyristor open
Thyristor short N/A
Load short Available
Load open Available
Only when conversion boards 3 (U) and 3H (U) mounted.
The item marked with
Starting the unit without turning on the power of main circuit for test operation may cause its self-diag-
nostic function to stop operation. In such a case, release the self-diagnostic function once to restart
operation.
To forcibly release the self-diagnostic function, use a thin bar-shaped item to press the SELF CHECK
switch located on the lower-right part after opening a terminal cover on the front of the unit. When the
switch for approximately one second is pressed, the abnormality indication lamps of "THY" and "LOD"
on the upper part simultaneously flicker for about 1 minute. If the control power supply is turned off and
then on during compulsory release of self-diagnostic function, the settings are stored during such com-
pulsory release. When the control power supply is turned on, the abnormality indication lamps of "THY"
and "LOD" flicker for about 1 minute simultaneously, indicating that the self diagnostic function is in
compulsory release.
To recover the self-diagnostic function, press the SELF CHECK switch again. Doing so causes such
abnormality indication lamps to go out in the case they are flickering simultaneously.
With conversion
board
In running In stopping
N/A Available
Available Available
N/A Available
N/A Available
is judged to be load short even in the case of Thyristor open.
15
Operating status after
detection of abnormality
N/A Operation stops.
Available Operation stops.
N/A Operation stops.
N/A Operation continues.