5. System Operation
Page 16 PowerShift User Manual Version B
Circuit
1, 2 or 3
LED
Module
“X” LED
Alarm
Condition
(GUI & Relay)
Description
Possible cause – Module is over temperature
- Module shuts down affected circuit(s) to protect itself from high temperature
condition
- Possible causes: Module fan intake is blocked, site shelter cooling system has
failed, module fan has failed
- If the problem resolves itself (shelter cooling is restored) and module drops
below threshold, then output power is restored and LED status changes (see
next row below)
Possible cause – Input Voltage out of range
- Circuit is shut down due to its input voltage being out of range (see
specification table)
- Possible causes: DC rectifier plant output voltage out of range, DC plant on
batteries that have discharged to a low voltage
- If input voltage is brought back into range the circuit will immediately re-enable
its output
Green
Blink
Yellow
Solid
Major A latent module failure has occurred, circuit was likely previously shut down but
is now providing output power
Possible cause – Module was previously over temperature
To Next Page
Loading...
Need help?
General