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Maintenance
7-4
Copyright © 2005-2006 Eaton Corporation. All Rights Reserved.
IPN 997-00012-41D December 2006
Problem Possible Cause/s Required Action
SM45 does not
correctly register the
current shunts and
the displayed values
are over range.
Local/External current shunt
selector switches in the wrong
position.
Contact your local Powewrware
DC product representative.
SM45 display is
blank.
Faulty SM45 display or
disconnected display loom.
Contact your local Powewrware
DC product representative.
SM45 is not powered Check the SM45 card is fully
inserted into the backplane.
SM45 green
Power On LED off.
SM45 is faulty. Contact your local Powerware
DC product representative.
SM45 red LED on SM45 “Urgent Alarm” is active.
Check the type of “Urgent
Alarm” using DCTools or press
the
key on the SM45 front
panel.
SM45 yellow LED
on
SM45 “Non-Urgent Alarm” is
active.
Check the type of “Non-urgent
Alarm” using DCTools or press
the
key on the SM45 front
panel.
Wrong IP address, netmask
and/or incompatible network
Gateway may be required
Check the settings with the
network administrator.
Faulty communications cable Replace faulty cable.
No Ethernet
communications
between SM45 and
local PC
The Telnet Active check box in
the DCTools Comms Properties
dialog is enabled.
Disable the Telnet Active check
box in the DCTools Comms
Properties dialog.
Incorrect cable Check that a null modem cable
has been used.
Null modem cable not plugged
into PC or plugged into the
wrong port.
Check that the null modem
cable is plugged into the PC and
into the correct port.
Communications port settings
of PC do not match that of the
RS-232 serial port of the power
system.
Reconfigure the PC port
properties (19K2 8 N 1).
No communications
between SM45 and
local PC
Incorrect S3P address. Check that the S3P address in
DCTools is set to 0.
continued