Enterprise Power Solutions Installation and Operation Guide
44
Copyright © 2008 Eaton Corporation. All Rights Reserved.
IPN 997-00012-56C September 2008
Troubleshooting
Use the table to troubleshoot minor installation and operational problems. For additional
assistance see contact details on page
. Return items for replacement or repair with a
completed Equipment Incident Report on page
Problem
Possible Cause
Required Action
SC200 or SC100 displays a
dc power system alarm
message.
See Alarm Descriptions in the System
Controller Operation Handbook.
All rectifiers are off (no
LEDs on) and system
controller display is blank.
AC supply to the system is off
and batteries (if used) are not
connected or are fully
discharged.
Restore ac supply.
AC supply to rectifier(s) off or
one or more phases are off.
Restore ac supply.
Rectifier(s) not fully inserted.
Insert rectifier and tighten retaining
screw.
Green LED of one or more
rectifiers is off.
Internal rectifier fault.
Remove the rectifier and insert
another one in the same slot. If
second rectifier fails to start then
there is a fault with the rectifier
position. Check ac connections.
If the second rectifier operates
normally, the first rectifier is faulty
and must be returned for service.
All rectifier LEDs flash.
The rectifier
Identify
function.
Normal operation. See details in the
System Controller Operation
Handbook.
The system controller is
starting.
Wait for system controller to
complete start-up.
Rectifier yellow LED flashes
Rectifier has not registered with
the system controller.
Remove then re-insert the rectifier.
Replace the rectifier with another
rectifier. If second rectifier fails to
register then there is a fault with the
rectifier position. Check rectifier
comms bus wiring.
If second rectifier registers then first
rectifier is faulty and must be
returned for service.
