TSC 80e TRANSFER SWITCH CONTROLLER
PM091 Rev 1 09/02/27 Thomson Technology
56
Symptom Possible Causes
-
Utility power switching device has tripped due to an over
current condition (Service Entrance type ATS) and TSC 80e
“Transfer Fail” alarm activated. Determine cause of alarm
and rectify before TSC 80e is reset
- Generator does not start up or stop
when it should
-
Verify remote engine control panel is set for automatic
mode.
Verify the FTS4 selector is not in the Off, Engine Start or
Test positions
- No time delay when there should be -
Verify time delay function setting of TSC 80e controller
Verify load bus voltage decay during transfer to enable
neutral delay timer
- 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 trip unit (service entrance type
ATS) has tripped on 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
- Engine runs for no apparent reason -
Verify the TSC 80e has not been set for test operation.
- Load on Generator or Load on Utility
indication Lights are not operative
-
Verify the generator or Utility ATS mechanism limit switch is
closed to make correct signal feedback to the controller,
load voltage is present and load voltage sensing is correctly
wired to the controller from the mechanism load terminals.
- Controller does not accept a new
USER password value when entered
The USER password can be modified only when the
MASTER Password is used and the “SET PASSWORD”
prompt is displayed.
8. TSC 80e REPLACEMENT PARTS
The TSC 80e controller is comprised of 3 component pieces, which may be ordered as replacement
parts as follows:
TSC 80e Controller Board c/w Lexan Face plate & rear cover - Part Number TSC80eSR
When ordering replacement parts please provide the following information:
1. Transfer Switch Model code (e.g. TS 873AA0200AS)
2. Transfer Switch Serial Number (e.g. W-022345)
The above information can be found on the transfer switch rating plate located on the outside of the
ATS door.
NOTE
There are no user serviceable/replaceable components located
on the TSC 80e printed circuit board. If the TSC 80e controller
is deemed to be defective it must be returned to the Thomson
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