Marathon TS 910 - 18.5 TSC 9 FACEPLATE LIGHTS AND PUSHBUTTON OPERATION

TS 910 TRANSFER SWITCH
PM140 REV 2 14/01/23 32 Thomson Power Systems
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. Always 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 T EST 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.
Lamp Test
System Reset
Test and Exercise lights flash fast alternatively. All other indicators are off.
Special Conditions
All indicators flash fast together.