Charge Overcurrent Protection; Heater Fault; Bmu Missing; Component Replacement - Huawei DPU40D-N06A3 User Manual

DPU40D-N06A3, DBU20B-N12A3, and
DBU50B-N12A1 Distributed Power System
User Manual
Solution
1.
2.

5.2.19 Charge Overcurrent Protection

Possible Cause
Internal hardware is faulty.
Solution
Replace the faulty module.

5.2.20 Heater Fault

Possible Cause
The heater is faulty.
Solution
Replace the faulty module.

5.2.21 BMU Missing

Possible Causes


Solution
Check whether the battery communications or power cable is loose. If so, secure the cable.

5.3 Component Replacement

Issue 04 (2020-02-29)
Check whether the load exceeds the maximum power of the lithium battery (see the
appendix "Technical Specifications"). If so, expand the lithium battery capacity or
reduce the load of the power system.
Check whether the load is short-circuited. If so, rectify the fault.
The battery communications cable is loose.
The battery power cable is loose.
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