SC100 Handbook
56
Copyright © 2008-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-63C August 2011
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
SC100 displays a dc power
system alarm message.
See Alarm Descriptions on page
SC100 LCD is blank and
green Power On LED is off.
RXP/power cable is
disconnected from the SC100.
Connect cable from connector YS11 to the
dc power system voltage feed module
(see Connections on page
). Wait for
start-up to complete.
The ac supply is off and the
batteries are not connected
because the Low Voltage
Disconnect (LVD) has
disconnected.
None. The power system including the
SC100 will return to normal operation
when the ac supply is within its specified
voltage range.
Faulty Voltage Feed Module
(VFM) or faulty SC100.
Replace faulty unit.
SC100 LCD is blank and
green Power On LED is on.
SC100 is in start-up mode
Wait for start-up to complete. See
Starting the SC100 on page
Faulty SC100
Replace faulty SC100.
SC100 Red LED or Yellow
LED is on.
An alarm is active.
Check the type of alarm on the LCD or
with
DCTools
or
PowerManagerII
. See
Alarm Descriptions on page
Unable to change settings
from SC100 keypad.
A previous setting change is still
being updated.
Wait a short time, and then try again.
Keypad access is set to
Protected
. See Keypad Access Security on page
Rectifier does not shutdown
when LBRS is enabled.
Load Based Rectifier Shutdown
is not available with APR48-3G,
EPR48-3G, APR24-3G and
CR48-3G rectifiers.
See Load Based Rectifier Shutdown on
page
Monitor OK relay (RLY6) is
de-energized.
An active alarm, digital input or
analog input is mapped to this
relay.
Check relay mapping. See Digital
Outputs on page
Problem with power or
communications to I/O board.
Check all connections (see Connections
on page
SC100 or I/O board software
corrupt or hardware fault.
Replace faulty unit.
Incorrect battery or load
current readings.
Bus voltage sense polarity is
incorrect.
Check the bus voltage sense polarity and
correct if necessary.
Incorrectly configured shunt
inputs.
Check shunt mapping and gain is correct.
Current is within the
Battery
State Threshold
. See details on
page
None, normal operation.
Summary of Contents for SC100
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