Chapter 2 Battery Installation
MUST400_User manual_EN_REV02 User Manual
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Battery Disconnect Devices Alarm
The alarm occurs when the battery disconnect device disconnects. The external battery connects to the UPS
through the external battery circuit breaker. The circuit breaker is manually closed and tripped by the UPS
control circuit.
2.3 Battery Maintenance
For the battery maintenance and precautions, please refer to IEEE-Std-1188-2005 and the relevant manuals
provided by the battery manufacturers.
Battery Maintenance Note
Check to ensure that all the safety devices are in place and function normally. Check if the battery
management parameter setting is normal particularly.
Measure and record the environmental temperature in the battery room.
Check if the battery terminals are damaged or have the symptom of heating, and if the shell or cover
is damaged.
Please fasten every bolt on the terminal according to the fastening torque specified in the table
below.
After 1-2 months of service, recheck to make sure that each screw has been fastened according to
the specified torque. Otherwise there is risk of fire.
CAUTION: Use batteries with the same capacity and type, if battery is replaced by an incorrect type,
it can cause explosion and damage of the equipment. Do not replace only part of the total string.
CAUTION: Dispose of used battery according to the local instructions
2.3.1 Modular Battery Cabinet Maintenance
Pull out battery pack:
1. Reduce the battery charging current in order to avoid too much current in the remaining battery box during
replacement. See paragraph 2.2.4 for current calculation.
2. Check if the time from latest discharging is over 60 minutes, if not, please wait unit 60 minutes.
3. Check if the battery voltage is over 520V and charger current is under 1.5A, if not, please wait.
4. Remove the screws and pull out battery pack slowly one by one
5. Put aside the battery pack at safe area
Warning
Battery voltage between 1 and 2(fig.2-1) is over 130V
Battery pack is over 25kg, it needs two people to carry out it
Replace a new battery pack:
1. Make sure that battery type and capacity are same as old one.
2. New battery pack is forbidden to be inserted in UPS in two hours from latest discharging.
3. Make sure that battery pack voltage is over 125Vdc and the polarity is correct.
4.
Insert the new battery pack in UPS and tighten it with screws.
警告
危 险
警告
危 险
