TSC 7320 Transfer Switch Controller
PM180 REV 0 23/02/10 Thomson Power Systems
43
Power is not available at the load
terminals but the utility or
generator power switching
device appears to be closed to a
live source
Utility or Generator power switching device
has tripped open due to an over current
condition.
Power Switching device must be reset by manually
operating the ATS mechanism to the other source,
then back to the source which was tripped.
Mechanism has failed to operate the power
switching device toggle far enough to close
the power switching unit.
Power switching device aux contact failure. Contact
Thomson Power system for adjustment procedure or
replacement of aux contacts
The transfer switch has
completed a transfer, but the
motor has overheated and the
internal thermal protector has
opened
Aux contact failure or improper adjustment
Contact Thomson Power system for adjustment
procedure or replacement of aux contacts
TS 7320 Display is not showing
any system information
Defective TS 7320 controller
Verify TSC 7320 has 24VDC control power applied to
the battery power input (1,2), then press and hold the
lamp test button, and ensure all 12 LED lights on the
front panel light up
If defective, return to Thomson Power systems using
RMA process
TSC 7320 controller is not powered from
24Vdc aux supply
The TSC 7320 controller needs 24Vdc aux power all
the time. Verify Low power buffer module provides
proper 24Vdc supply to TSC 7320 controller.
Service procedures must be undertaken by qualified personnel only.
NOTE
There are no user serviceable components located on the TSC 7320
printed circuit board. If the TSC 7320 controller is deemed to be
defective, they must be returned to the Thomson Power Systems
Factory for repair or replacement. Please refer to Product Return Policy
section of this manual further information on product return procedures
required.
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