TSC 800 TRANSFER SWITCH CONTROLLER
PM 049 REV 10 08/09/25 Thomson Technology
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new value is applied will result in the new value being overwritten with the original
value.
NOTE:
If the programming mode is terminated before the last change
had been entered, the programming parameter will remain
unchanged.
To exit the programming mode, press the EXIT pushbutton and hold for two seconds
until the display scrolls rapidly.
7.2. EXERCISE TIMER
NOTE:
The following exercise timer feature is provided in TSC 800
Software version 2.0 (or higher).
The TSC 800 controller has a built-in programmable exercise timer, which allows up to a 4
week (28 day), exercise time period. The timer is fully programmable for, day of week, time of
day, duration of the test and type of test mode (i.e. On Load or Off Load). The exercise timer
utilizes the TSC 800’s internal time clock for referencing all timing functions. The time clock
has a 10-minute power reserve feature to retain correct time settings during short duration
utility power failures. When AC power is removed from the controller, the last time clock
setting will be maintained and will not revert to default setting when the power reserve supply
is fully drained. On re- power-up, the last time setting will be displayed. NOTE: During any On
Load exercise test mode, the transfer switch will automatically re-transfer back to the utility
supply if the generator set fails. To program the exercise timer prompts refer to the following
descriptions:
7.2.1. SYSTEM TIME ROLLOVER
Select the number of days (7, 14, 21, 28) in which the system time clock will rollover
for desired operation of the exercise timer. (Example - If a weekly test schedule is
required at the same time; a 7-day period may be selected, this will have the test
repeat each week at the same time and interval. If the generator set is to be exercised
once a month, a 28-day system rollover should be selected.) The week and day of
week can be selected from any one of the 4 weeks in the list, the test will then repeat
at this selected time and interval.
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