Disconnecting The Battery Supply; Performing Epo - Huawei SmartLi 1.0 User Manual

SmartLi 1.0
User Manual
Step 5 When multiple SmartLi cabinets are combined:
1.
2.
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7.2 Disconnecting the Battery Supply

Procedure
Step 1 Switch off the SmartLi battery circuit breaker. (Perform this operation for multiple
SmartLi cabinets one by one.)
Step 2 Press and hold the POWER ON/OFF button on the BCU for more than 5s. (Perform
this operation for multiple SmartLi cabinets one by one.)
If batteries will not be charged for more than one month after power-off:
1. Remove the BCU to reduce battery discharge, preventing batteries from being
2. Disconnect the copper bars in the middle of the battery strings, preventing
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7.3 Performing EPO

● After EPO is triggered, there is no SmartLi output.
● After EPO is triggered, the system reports a Battery cabinet EPO alarm.
Issue 09 (2023-03-26)
If the green indicator of one BCU blinks at 10 Hz, turn on the battery circuit
breaker on any SmartLi.
NO TICE
In this case, the green indicators of all BCUs are on for 1s and then off for 4s,
and you cannot turn on the battery circuit breakers on other SmartLi cabinets
or cold-start the UPS.
After the green indicators of other BCUs blink at 10 Hz, turn on the battery
circuit breaker on the SmartLi where the BCU blinks at 10 Hz one by one.
NO TICE
overdischarged due to storage at low SOC.
safety risks due to high battery string voltage.
NO TICE
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