TS 910 TRANSFER SWITCH
PM140 REV 0 12/02/09 29 Thomson Technology
18.5. TSC 9 FACEPLATE LIGHTS AND PUSHBUTTON OPERATION
Operation of the TSC 9 controller lights and pushbuttons are described in the following
table:
Light
Color
Label Light Off Light On Light Slow Flash Light Fast Flash
Green System OK
System is functioning
normally.
Yellow Alarm
No fault condition has occurred
since last system reset.
A fault condition has occurred
since last system reset.
Yellow
Wait For
Transfer
Not currently w aiting for in-phase
transfer.
Currently w aiting for in-phase
transfer.
A in-phase transfer
related fault has occurred.
Green Diagnostic
Unused. Alw ays off.
Green Utility
Utility voltage/freq not good. Utility voltage/freq good.
Green On Utility
Load is not on utility. Load is on utility.
A utility-related transfer
fault has occurred.
Red On Generator
Load is not on generator. Load is on generator.
A gen-related transfer
fault has occurred.
Red Generator
Gen voltage/freq not good. Gen voltage/freq good.
Red Generator Start
Generator is not commanded to
start/run.
Generator is commanded to
start/run.
Yellow Load Shed
Load is not being shed. Load is being shed.
Yellow TEST
Manual test is not active. Manual test is currently active.
Manual test is active,
initiated remotely.
Yellow EXERCISE
Exercise is not active or enabled
Exercise is enabled but not
currently active.
Exercise is currently
active.
An exercise related fault
has occurred.
Lam p Test
System Reset
Test and Exercise lights flash fast alternatively. All other indicators are off.
Special Conditions
All indicators flash fast together.
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