Eaton EFX48 e-Fuse Series, Installation And Operation Manual

Page: 129 / 161

Maintenance
Copyright © 2019 Eaton Corporation. All Rights Reserved.
IPN March 2019
129
Replacing the EFX48
The EFX48 can be replaced without switching off the dc power, but all loads and batteries will
need to be disconnected.
Ensure that before any work is started:-
 Approval is sought for disconnecting loads.

Load and battery connections are removed in accordance with the instructions in the
Installation section on page 55, but the steps followed in reverse. Ensure all warnings are
reviewed and adhered to in the DC System and Component Safety section on page 10.
Before you start you will require:
•
A Laptop/PC with the Eaton configuration tool ICE-X connected to the EFX48 directly or
via an IP network.
•
A replacement EFX48.

A new EFX48 is factory loaded with a 48V (nominal) default configuration file. Web
pages can be used to modify the configuration file already loaded in a EFX48.
•
A copy of the appropriate configuration file, either:
•
use the configuration file saved from the existing EFX48 using ICE-X, or
•
contact your Eaton dc power system supplier to obtain a master configuration file to
suit the dc power system. This file will have to be customized for the site.
Step 1 - Backup the configuration file of the old EFX48 if possible
If the old EFX48 is still operational use the Eaton configuration tool ICE-X to backup
its configuration file.
 See Backup and Restore on page 76.
Step 2 - Remove the EFX48
1
Label, and then disconnect the load, battery and communication cable(s) from the
front connectors.
2
Undo the EFX48 retaining screw. See the diagram on page 48.
3
Partly withdraw the EFX48.
4
When the EFX48 stops communicating the rectifier output voltage will be
unchanged for 2 minutes. After 2 minutes the rectifier output voltage will change
to the Float Voltage and the rectifier yellow LEDs will flash.
Step 3 - Insert the new EFX48
1
Insert the EFX48 and tighten the retaining screw.
2
Connect the load, battery and communication cable(s) to the front connectors.
3
The EFX48 will start. See Starting the EFX48 on page 69. Various alarms may
appear because of incorrect configuration file settings. Press any key to silence the
alarm.