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7-2
Copyright © 2005-2006 Eaton Corporation. All Rights Reserved.
IPN 997-00012-41D December 2006
Troubleshooting
Use the table below to troubleshoot minor power system installation and operational
problems. If you still cannot solve a problem, contact your local Powerware DC product
representative for assistance.
Problem Possible Cause/s Required Action
All rectifiers are off
(no LEDs on) and
SM45 display is blank
AC power to the system is off
and the batteries are fully
discharged or disconnected.
Restore AC power.
AC power to rectifier(s) off or
one or more phases are off
Restore AC power.
Rectifier is not fully inserted. Check that the rectifier is fully
inserted.
Green LED of one or
more rectifiers is off
Internal rectifier fault Remove the rectifier and insert
another one in the same slot.
If the second rectifier operates
normally, the first rectifier is
faulty and must be returned to
your local Powerware DC
product representative.
Very low AC voltage or AC
supply failed
Check the AC supply. The
power system will return to
normal operation when the AC
supply has returned to within its
specified AC input voltage
range. See Appendix C.
AC overvoltage None. The power system will
return to normal operation when
the AC supply has returned to
within its specified AC input
voltage range, as specified in
Appendix C.
Rectifier shut down Check if a rectifier has in fact
been shut down, using DCTools.
If yes, turn on the rectifier using
DCTools.
Rectifier(s) failed Use DCTools to determine if a
rectifier has failed or has been
shut down.
If a rectifier has failed, replace it.
If a rectifier has been shut down,
refer to required action for
Rectifier Shut Down.
Rectifier red LED on
DC overvoltage Remove and re-insert rectifier(s)
after approximately 5 seconds.