THOMSON TSC 80E - V2.2 User Manual

TSC 80e TRANSFER SWITCH CONTROLLER
PM091 Rev 1 09/02/27 Thomson Technology
55
7. TROUBLESHOOTING
A number of problems can cause the TSC 80e controller not to function properly. Refer to the
following list of typical problems. Consult the factory for any detailed information or for any problems
not listed.
CAUTION!!!
Before opening the Transfer Switch enclosure to perform any service task, it is imperative to
isolate the transfer switch from any possible source of power. Failure to do so may result in
serious personal injury or death due to electrical shock.
Service procedures must be undertaken by qualified personnel only!
Symptom Possible Causes
- Will not re-transfer to utility source
upon restoration
- A test mode has been activated
- Utility voltage is outside the pre-programmed limits (check
utility source for adequate voltage)
- A loose control connection
- Faulty limit switch contact in the ATS motor circuit
- Defective ATS Motor
- Defective TSC 80e controller (verify output signals with
circuit board mounted diagnostic LED’s)
- TSC 80e has “Transfer Fail” alarm activated which is
indicated by a flashing “Load on Utility” LED which is located
on the Lexan faceplate and/or a message on the LCD.
Determine cause of alarm and rectify before TSC 80e is
reset
- Will not transfer to generator source
upon failure of utility source
- Generator set not producing enough voltage/frequency or
output circuit power switching device open
- Warm-up time delay function has not timed out (verify TSC
80e timer setting)
- A loose control connection
- Faulty limit switch contact in the ATS motor circuit
- Defective ATS Motor
- Defective TSC 80e controller (verify output signals with
circuit board mounted diagnostic LED’s)
- TSC 80e has “Transfer Fail” alarm activated which is
indicated by a flashing “Load on Generator” LED which is
located on the Lexan faceplate. Determine cause of alarm
and rectify before TSC 80e is reset
- Transfer to generator source without a
power failure in the utility source
-
-
A test mode has been activated
Defective TSC 80e controller (verify output signals with
circuit board mounted diagnostic LED’s)
- Loose or broken wire to the utility voltage sensing terminals
on the TSC 80e controller
- Utility supply voltage is slightly below voltage sensing
setpoints. Compare TSC 80e program voltage setpoints
with actual utility voltage.

THOMSON TSC 80E - V2.2 Specifications

General

Brand	THOMSON
Model	TSC 80E - V2.2
Category	Controller
Language	English