System Controller Problems (Rm3-410/420 Models Only) - Eaton RM3-400-0330 Installation And Operation Manual

System Controller Problems (RM3-410/420 Models only)

Problem
SC200 or SC100 displays a
dc power system alarm
message.
SC200 or SC100 LCD is
blank and green Power On
LED is off.
SC200 or SC100 LCD is
blank and green Power On
LED is on.
SC200 or SC100 Red LED or
Yellow LED is on.
Unable to change settings
from SC200 or SC100
keypad.
Monitor OK relay (RLY6) is
de-energized.
Incorrect battery or load
current readings.
Possible Cause
RXP/power cable is
disconnected from the SC200 or
SC100.
The ac supply is off and the
batteries are not connected
because the Low Voltage
Disconnect (LVD) has
disconnected.
Faulty Voltage Feed Module
(VFM) or faulty SC200 or SC100.
SC200 or SC100 is in start-up
mode
Faulty SC200 or SC100
An alarm is active.
Keypad access is set to Read
Only or PIN Protected.
An active alarm, digital input or
analog input is mapped to this
relay.
SC200 or SC100 or I/O board
software corrupt or hardware
fault.
Bus voltage sense polarity is
incorrect.
Incorrectly configured shunt
inputs.
Current is within the Battery
State Threshold. See details in the
System Controller Operation
Handbook.
Copyright © 2007-2010 Eaton Corporation. All Rights Reserved.
IPN 997-00012-62E
Required Action
See Alarm Descriptions in the System
Controller Operation Handbook.
Connect cable from connector YS11 to the
dc power system voltage feed module
(see Connections on page 69). Wait for
start-up to complete.
None. The power system including the
SC200 or SC100 will return to normal
operation when the ac supply is within
its specified voltage range.
Replace faulty unit.
Wait for start-up to complete. See
Starting the SC200 or SC100 on page 35.
Replace faulty SC200 or SC100.
Check the type of alarm on the LCD or
with DCTools/Web or PowerManagerII. See
Alarm Descriptions in the System
Controller Operation Handbook.
See Keypad Access Security on page 36.
Check relay mapping. See Alarms,
Analog Inputs, or Digital Inputs in the
System Controller Operation Handbook.
Replace faulty unit.
Check the bus voltage sense polarity and
correct if necessary.
Check shunt mapping and gain is correct.
None, normal operation.
June 2010
Maintenance
47