Alpha Technologies Cordex CXCRF 48-300W - Manual (Page 45)

0300072-J0 RevA Page 41 of 46
5 MAINTENANCE
5.1 Battery Replacement
WARNING!
Use insulated tools when working with batteries.
WARNING!
Ensure that the system is connected to the mains.
The following procedure should be followed to change the batteries when the system is connected to an AC
supply:
1. Check that the rectifiers are delivering power and that the output voltage is 54Vdc (+/- 0.5Vdc).
2. Open the system battery breaker.
3. Open
the external battery disconnect device (if present)
4. Remove one of the links between the battery blocks.
5. Remove the battery connector from the shelf.
6. Replace the batteries, install all except one of the links between the blocks
7. Connect the cables to the batteries.
8. Install the last inter-cell link.
9. Measure the total battery voltage: 48 V (+/- 2 V).
10. Close the external battery disconnect device (if present).
11. Insert the battery connector in the shelf
12. Close the system battery breaker
13. The green “LVD OK“ LED will illuminate if the batteries have been connected in the correct polarity.
14. Perform a battery continuity check