TSC 800 TRANSFER SWITCH CONTROLLER
PM 049 REV 9 06/04/24 Thomson Technology
55
7.5.7. TRANSFER LOGIC
NOTE: This feature is user selectable in TSC 800 software version 1.3 (or
greater). The TSC 800 transfer controller software contains a user selectable function
for type of transfer logic required for specific applications. This feature will be factory
set for specific type of application and transfer mechanism used and therefore should
not require resetting.
Selectable operating logic is as follows:
MAINTAINED: The TSC 800 transfer output signals will stay in the
‘MAINTAINED” energized state upon a source failure and will only de-energize
when the alternate source becomes available. NOTE: the transfer output
signal will de-energize upon a total loss of source voltage.
DROPOUT: The TSC 800 transfer output signals will “DROPOUT” (or de-
energize) when the connected source goes out of normal voltage or frequency
limits. The transfer output signal will only re-energize when the connected
source returns to normal limits.
7.5.8. LOAD ON UTILITY PROGRAMMABLE OUTPUT
NOTE:
The following Programmable output features are provided in
TSC 800 Software version 2.0 (or higher).
The TSC 800 transfer controller output on terminal TB3-2 may be programmed for
different control functions. The powered output is supplied from the Utility supply and
must be used accordingly. The following programmable functions are available:
NOTE: Only one function may be programmed.
LOAD ON UTILITY Output energizes when the utility transfer
power-switching device is closed.
UTILITY NORMAL Output energizes when the utility supply is
energized and is within nominal voltage and
frequency limits.
DELAYED TRANSFER Output will energize “X” seconds following a
Transfer to Utility logic signal. The time period
is programmable 0-30 seconds.
NOTE: