Eaton Electrical SC200 Troubleshooting, Maintenance, Problem Possible Cause/s Required Action

Maintenance

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	AC power to the system is off	Restore AC power.
(no LEDs on) and	and the batteries are fully
SM45 display is blank	discharged or disconnected.
Green LED of one or	AC power to rectifier(s) off or	Restore AC power.
more rectifiers is off	one or more phases are off
	Rectifier is not fully inserted.	Check that the rectifier is fully
		inserted.
	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.
Rectifier red LED on	Very low AC voltage or AC	Check the AC supply. The
	supply failed	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.
	DC overvoltage	Remove and re-insert rectifier(s)
		after approximately 5 seconds.

7-2	Copyright © 2005-2006 Eaton Corporation. All Rights Reserved.
	IPN 997-00012-41D December 2006