TSC 800 TRANSFER SWITCH CONTROLLER
PM 049 REV 9 06/04/24 Thomson Technology
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Onload Test When the Onload Test prompt is selected and entered, the generator
will immediately start and transfer on load. The test menu will display
Continuous Test, to select a timed test use the INCREMENT or
DECREMENT pushbutton to scroll and select a test duration time, press
enter to accept the time (selectable in 15 minutes increments from 15 –
240 min.). The generator will remain running until a different mode is
selected and entered or the timed test duration expires (selecting Auto
will terminate the test after the Utility Return Timer has expired). On
expiry of the timed test the operating mode automatically reverts to
Auto.
NOTE: Should the Generator fail during the onload test and the Utility
supply is available and within acceptable limits the load will be
transferred on expiry of the generator under voltage delays.
Off The TSC 800 Controller is considered out of Service. The transfer
mechanism logic outputs are dropped out and disabled. The transfer
switch will remain in its last position and the remote start removed if
previously enabled. Manual and auto test features are disabled. This
selection takes precedence over all other modes.
NOTE: When this mode is selected the local generator controls should
also be placed in OFF. Failing to do can result in cyclical engine
starting. On loss of Utility supply in this state (loss of control power to
the TSC 800) the engine start contact will drop out after approximately 4
minutes resulting in generator starting and stopping (the cycle will
repeat approximately every 4 minutes after the control power is
removed).
NOTE: On return to normal service the Engine Start output is inhibited
(held up) for approximately 8 – 10 seconds. Requesting another mode
of operation during this time, which requires the engine start contact to
close, will be ignored.
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