GE Industrial Solutions ZTSH SERIES 30-4000 AMPS - Manual (Page 15)

■ ■ Zenith Controls, Inc. 13 ■ ■ ZTSH Operation and Maintenance Manual (43R-1000)
Maintenance and Testing
(cont’d)
Annunciation Possible Cause Corrective Action
Engine Does Not STOP
Delay to Engine Stop LED on
Normal Available, Normal Position,
and Emergency Available LEDs on
U timing cycle not complete
Engine start wires not
terminated correctly
Generator in “Manual”
Check U Timer setting
Check Engine Start Connections
Investigate why the Engine Control
Switch was put in manual
Annunciation Possible Cause Corrective Action
ATS Will Not Transfer To EMERGENCY
Emergency Available LED off
None
Normal Position and Emergency
Position flashing
Delay to Open Normal LED on
Emergency voltage or frequency
not within acceptable parameters
Power supply harness unplugged
Limit switch harness unplugged
W timing cycle not complete
Check Engine Start Connections,
Generator Breaker, Generator
output, and Engine Control Switch
Plug in harness
Plug in harness
Check W Timer setting
Annunciation Possible Cause Corrective Action
ATS Will Not Transfer To NORMAL
Normal Available LED off
None
Normal Position and Emergency
Position LEDs flashing
Delay to Open Emergency LED on
Normal voltage or frequency not
within acceptable parameters
Power supply harness unplugged
Limit switches harness unplugged
T timing cycle not complete
Check utility and utility breakers
Plug in harness
Plug in harness
Check T Timer setting
Troubleshooting
Before beginning any troubleshooting activity, refer to the information package supplied with
the transfer switch and review the description and operation of all accessories supplied. Also
refer to the Installation section of this manual.
Annunciation Possible Cause Corrective Action
Engine Does Not START
Emergency Available LED off Engine start wires not
terminated properly
Generator in “OFF” position
Check Engine Start Connections
Investigate why Engine Control
Switch was turned off