Maintenance
Copyright © 2008-2009 Eaton Corporation. All Rights Reserved.
IPN 997-00012-71B July 2009
63
Step 4 - Update I/O board mapping
1
In DCTools/Web go to:
Configuration
>
RXP
>
I/O Board to Serial
Number Mapping
.
2
Copy the I/O board serial number from the
RXP Devices
table to the
I/O Board to Serial Number Mapping
table to map an
IOB Number
to the
I/O board (overwrite existing serial number).
The alarms (except LVD alarms, if LVDs are fitted) will clear.
Step 5 - Clear LVD Characterization alarm(s) (if required)
If there is no LVD Characterization Error alarm then ignore this step.
1
On the SC200 go to: Battery > LVDs > LVD x > Not Characterized >
Edit
2
Select
Use SC Values
. Press
Enter
. No further action is required - go to
(3).
If
Use SC Values
is not available then the LVD must be characterized.
This will cause the LVD contactor(s) to disconnect for a few seconds.
•
If LVD1 is a battery disconnect LVD then the load equipment will
continue to be powered by the rectifiers.
•
If LVD1 is a load disconnect LVD then the low priority load
equipment will continue to be powered via the LVD bridge cable.
•
On the SC200 go to: Battery > LVDs > LVD x > Not Characterized >
Edit
The LVD1 contactor will disconnect and connect. When the
characterization is complete the LVD1 Characterization Error alarm
will clear.
3
If necessary, repeat for LVD2.
Step 6 - Remove the LVD bridge cable(s) (if fitted)
Ignore this step if no LVD bridge cable was fitted.
Procedure complete
Monitoring and Replacing Transient Protective Devices
For information on transient protection devices see Input Transient Protection on page
Metal oxide varistors (MOVs) are the most widely used transient protective devices. MOVs
are generally fitted in the main ac switchboard of the building for primary transient
protection, and in the dc power system's ac distribution module or ac sub-switchboard for
secondary transient protection.
Monitoring the MOVs
MOVs are fitted with alarm contacts and visual indicators. Connect these alarms to the
system controller and from there extended to the building or network management system. If
the MOVs are not monitored automatically, then regular visual inspections must be carried
out.
