Eaton SC100 - Page 63

Maintenance
Copyright © 2008-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-63C August 2011
57
Problem
Possible Cause
Required Action
SC100 or DCTools displays
??? or N/A
Failed, disconnected or
unconfigured sensor.
Replace, connect or configure sensor.
Faulty or disconnected voltage
feed module.
Replace or connect voltage feed module.
SC100 displays Config Error
Missing or invalid configuration
file.
Either:
Load a valid configuration file into the
SC100. See Backup and Restore on page
44, or
Change one or more configuration
settings using the SC100 keypad or
DCTools.
Incorrect rectifier voltage,
because installed rectifiers have
different output voltages.
Check that all rectifiers are of the same
type and replace as necessary.
DCTools connection
problem (Target Failed to
Respond error)
Connection problem
Refer to following communications
problems.
Modem/RS232
communications problem.
Incorrect, disconnected or faulty
cable.
Check an RS232 straight-thru cable is
plugged into XS1 and the modem.
Replace faulty cable.
Access to RS232 connector XS1
is restricted.
Use a DB9 ribbon cable extension (Farnell
part number 869-6411).
Incorrect communications
settings.
See PSTN Modem Communications on
page 49 or GSM Modem
Communications on page 51.
Incorrect modem setup string.
Refer to the AT command section in the
modem's manual.
Modem not powered or other
modem problem.
Refer to the modem's manual.
Incompatible modem.
Contact your Eaton dc product supplier
or Eaton for advice. See Worldwide
Support on page 75.
Password required to change
settings.
See Write Access Password on page 53.
I/O board Power/Comms
OK LED is off
I/O board is not powered or
faulty.
Check connection to YH3 on I/O board.
See Connections on page 4.
Replace I/O board if faulty.
I/O board Power/Comms
OK LED is flashing.
I/O board is responding to an
Identify command from the
SC100.
None, this is normal operation. See
details.
LVD Status LED(s) (on I/O
board) are on.
LVD contactor is energized.
None, this is normal operation.
LVD Status LED(s) are off
(I/O board Power On LED is
on).
LVD contactor is de-energized.
None, this is normal operation.