Enterprise Power Solutions Installation and Operation Guide
46
Copyright © 2008 Eaton Corporation. All Rights Reserved.
IPN 997-00012-56C September 2008
Problem
Possible Cause
Required Action
Temperature Compensation is
active
This is normal if batteries are
connected and the battery
temperature is below the reference
temperature.
Disable Temperature Compensation
if no batteries are connected.
.Equalize or Fast Charge is
active.
Disable active control process in
system controller if not required.
Incorrect float voltage setting at
system controller.
Correct the float voltage setting of the
system controller.
Record new setting.
High system output voltage.
Faulty rectifier.
Locate the rectifier with the highest
output current and remove this one
first.
If the first rectifier removed is not
faulty, remove each of the remaining
rectifier modules one at a time, until
the faulty rectifier is found. (The
output voltage returns to normal
when faulty rectifier is removed.)
Replace faulty rectifier with one that
is working.
Return the faulty rectifier for service.
System has no dc output
(rectifiers are on).
Load circuit breaker open.
Switch on the required load circuit
breaker(s).
Battery module cable(s)
disconnected.
Connect all battery module cables.
Battery circuit breaker(s) in off
(O) position.
Switch on (I) the required battery
circuit breaker(s).
System has no battery input
LVD has disconnected the
battery (because ac supply is off
and the battery is fully
discharged).
None, this is normal operation.
The battery will be automatically
reconnected when the ac supply is
restored.
Battery capacity is too low for
the connected load.
Connect additional battery
module(s). See Battery Module
Selection on page
Battery requires recharge.
Charge for 24 hours.
Battery service life has expired. Check service life of battery (see
details on page
Battery runtime is too short
A battery module has an
internal fault.
Disconnect the input and output
cables from each battery module in
turn and check its dc output voltage
(nominal 48V). Any module with
zero output voltage must be returned
for service.
