TSC 800 TRANSFER SWITCH CONTROLLER
PM 049 REV 9 06/04/24 Thomson Technology
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LOAD ON GEN Output energizes when the generator transfer
power-switching device is closed and load
voltage is present.
LOAD SHED Output energizes when generator is on load and
frequency drops below under frequency setpoint
for longer than the time delay setting.
FAIL TO TRANSFER Output relay energizes when the transfer switch
mechanism fails to operate for the given time
delay period. NOTE: This output feature is only
activated when the “TRANSFER SWITCH FAIL”
feature is set to either “Halt” or “Force” transfer
settings.
NOTE:
The following Programmable output features are provided in
TSC 800 Software version 2.0 (or higher).
UTIL NORMAL Output relay energizes when the utility supply is
energized and is within programmed voltage,
frequency and phase balance limits on all
phases.
GEN NORMAL Output relay energizes when the generator
supply is energized and is within programmed
voltage, frequency and phase balance limits on
all phases.
ATS NOT IN AUTO Output relay energizes when the TSC 800
operating mode is not in the AUTO operating
mode. This condition will occur when the
external switch (e.g. FTS4) or internal Test
Modes is programmed in any other mode other
than Auto.
2
nd
ENGINE START Output relay de-energizes when the TSC 800
signal an engine start operation due to a failed
Utility supply or activated Test mode.
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