Maintenance
Copyright © 2007-2010 Eaton Corporation. All Rights Reserved.
IPN 997-00012-52D July 2010
51
Problem
Possible Cause
Required Action
Rectifier power limit or current
limit is active.
Power system is charging the batteries.
If required, activate the Battery Current
Limit control process.
Load current exceeds the total
rectifier capacity.
Install additional rectifiers.
Rectifier yellow LED on.
Rectifier temperature turndown
is active due to low ac supply
voltage or high ambient
temperature.
Power system will return to normal
operation when the ac supply voltage
and/or ambient temperature are within
the specified ranges. See Specifications on
page
System controller has shut
down the rectifier. (Depending
on model, rectifier may also
click every 5-15 seconds.)
Normal operation. See Rectifier
Shutdown in the System Controller
Operation Handbook.
If required, restart the rectifier.
Very high or low ac voltage, or
ac supply failed.
Power system will return to normal
operation when the ac supply voltage is
within the specified range. See
Specifications on page
DC overvoltage
Remove and re-insert rectifier(s) or shut
down and restart using
DCTools/Web
.
Rectifier red LED on.
Internal rectifier fault.
Replace the rectifier.
Rectifiers off.
Restore the ac supply.
Temperature Compensation is
active and the battery
temperature is above the
reference temperature.
None. This is normal operation (if
batteries are connected). Disable
Temperature Compensation if no
batteries connected.
Battery Test or Battery
Characterization is active.
None. Output voltage will return to
normal when Battery Test or Battery
Characterization is completed.
Low system output voltage
(rectifiers not in current
limit).
Incorrect float voltage setting at
system controller.
Correct the float voltage setting of the
system controller.
Record new setting.
Load is too high for rectifier
capacity.
Install additional rectifiers.
Low system output voltage
and rectifier yellow LEDs
are on (rectifiers are in
current limit).
Battery is recharging after ac
supply failure.
Check battery has recharged within
expected time.
