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13.4.2 Replacing a Battery Pack
If a Battery in a Battery Pack (string) has been found to be faulty, all four batteries in that
pack will need to be replaced together. Follow the Instructions below to safely replace a
battery pack. See section 10 for isolation switch information.
WARNING: All battery safety information must be read and understood before
installation of the batteries begins. Refer to the safety information at the
beginning of this document.
WARNING: Use the insulated spanner when adjusting battery terminal fixings.
Terminals should not be exposed for extended periods. Replace the terminal
covers whenever possible. This reduces the risk of an accidental short-circuit.
WARNING: Batteries must NOT be shorted to earth at any time, Risk of
explosion and/or burning due to High Current. Do not attempt this process
without the correct 1000V Insulated Spanner.
Before Disconnecting the Battery Pack:
1. Switch all Breakers on the Battery Shelves (Battery Housing Assemblies) in both
cabinets (UPS and Battery Expansion Cabinets) to the OFF position
2. Switch the Battery Breaker on the Front left of the Alpha FXM UPS unit to the
OFF position
3. Unplug the 48V Battery Connector from the front (left) of the FXM unit to
disconnect the battery circuits completely.
Removing the Battery Pack:
1. Remove the Brown cable form the +ve (right hand side) of the Battery Pack,
insulate the ring crimp using electrical tape.
2. Remove all three linking bars from between the batteries in the pack.
3. Lower the battery retention bar of the Battery Housing module.
4. Remove the three batteries from right to left leaving the furthest left battery until
last
5. Remove the Grey –ve cable form the final battery
6. Remove the last Battery from the Battery Housing Assembly
Install the new batteries:
1. Slide Battery 1 into the housing.
2. Connect the negative ring tag from the housing's MCB to the negative terminal
on Battery 1. (grey cable)
NOTE: All battery terminals are to be made hand tight. DO NOT
OVERTIGHTEN as battery terminals can be easily damaged.
3. Slide Battery 2 into the housing. Connect the positive of Battery 1 to the negative
of Battery 2 using the terminal linking bar provided.
NOTE: When fitting batteries in the Battery Housing module directly below the
UPS Housing module, the Battery Temperature sensor is to be fitted as this
stage. Refer to section 9.12 before completing the following instructions.
4. Repeat this last step with Batteries 3 and 4.
Version
7
Last Editor
Ore Oluwatudimu
Document
UPS Solution General Handbook
Name
Copyright ã Siemens plc 2017 All Rights Reserved
Infrastructure and Mobility, Traffic Solutions
Page 61 of 76
Status
TS008468
Date
Doc. No.
Sopers Lane, Poole, Dorset
BH17 7ER
ISSUED
31/01/2017
667/HB/47750/000
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