Access Power Solutions Installation and Operation Guide (APS6-300/500 and APS12-300 Series)
52
Copyright © 2007-2013 Eaton Corporation. All Rights Reserved.
IPN 997-00012-49G May 2013
Problem
Possible Cause
Required Action
High system output voltage. Temperature Compensation is
active and the battery
temperature is below the
reference temperature.
None. This is normal operation (if
batteries are connected). Disable
Temperature Compensation if no
batteries connected.
Equalize or Fast Charge is
active.
None. Output voltage will return to
normal when Equalize or Fast Charge is
completed.
Incorrect float voltage setting at
system controller.
Correct the float voltage setting of the
system controller.
Record new setting.
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 MCB open.
Check for open MCB.
LVD contactor has disconnected
the load.
Use
DCTools/Web to c
heck LVD is enabled
and set to correct values. (LVD status
LED on the I/O board is on when
contactor is energized.)
Check that the I/O board is connected
(Power LED is on).
Check that the LVD control and power
cables connections on page
Check the connections from the load bus
to the LVD.
System has no battery input Battery MCB open.
Check for open battery MCB.
LVD has disconnected the
battery because ac supply is off
and the battery is fully
discharged.
None. The battery will be automatically
reconnected when the ac supply is
restored.
LVD contactor is open.
Use
DCTools/Web to c
heck LVD is enabled
and set to correct values. (LVD status
LED on the I/O board is on when
contactor is energized.)
Check that the I/O board is connected
(Power LED is on).
Check that the LVD control and power
cables are connected. See Connections on
page
Check the connections from the battery
bus to the LVD.