Technicolor - Thomson TS 870 - Manual (Page 35)

TS 870 TRANSFER SWITCH
PM062 REV 5 08/05/05 31 Thomson Technology
- Defective TSC 80 controller (verify output signals with circuit
board mounted diagnostic LED’s)
- TSC 80 has “Transfer Fail” alarm activated as indicated by
flashing Load on Generator LED. Determine cause of alarm
and rectify before TSC 80 is reset
Transfer to generator source without a
power failure in the utility source -
- A test mode has been activated (check TSC 80 status LED)
Utility supply voltage is slightly below voltage sensing setpoints.
Verify TSC 80 has correct voltage configuration jumper setting
for system voltage
- Defective TSC 80 controller (verify output signals with circuit
board mounted diagnostic LED’s)
- Utility power switching device has tripped due to an over
current condition and TSC 80 “Transfer Fail” alarm activated as
indicated by flashing Load on Utility LED. Determine cause of
alarm and rectify before TSC 80 is reset.
Generator does not start up or stop
when it should - Verify remote engine control panel is set for automatic mode
No time delay when there should be - Verify time delay setting of the TSC 80 controller
Power is not available at the load
terminals but the utility or generator
power switching device
appears to be
closed to a live source
- The power switching device's over current protection unit has
opened due to a fault on the system. Correct the fault, and
manually reset the power switching device
in the transfer
switch by moving it off and then on again with the manual
operating handle
- Limit switch incorrectly adjusted
The transfer switch has completed a
transfer, but the motor has overheated and
the internal thermal protector has opened -
-
Limit switch failure or improper adjustment has failed to
disconnect motor
Binding or jamming of the transfer mechanism