Huawei iSitePower - Inverter

No. Maintenance Item Possible Fault Cause Suggestion
5 Check whether the
displayed battery charge
current is the same as the
actual current measured by
a clamp meter.
● The current monitoring
cable is loose.
● The SMU is faulty.
1. Check that the current
monitoring cable is
securely connected.
2. Replace the SMU.
6 Check whether the
dierence between the
displayed DC output
voltage and the measured
DC busbar voltage is less
than 0.5 V DC.
● The cabinet busbar and
cables are loose or in
poor contact.
● The SMU is faulty.
1. Check and secure the
cabinet busbar and cable
connections.
2. Replace the SMU.
4.1.8 Inverter
D ANGER
● If you need to maintain AC load cables, switch o the L and N AC output circuit
breakers at this layer or disconnect the DC input at all layers.
● If you need to maintain the inverter, disconnect the DC input at all layers.
Table 4-8 Troubleshooting
Symptom
Possible Cause Suggestion
No information is
displayed after the
system is powered
on.
● The DC loop is
disconnected.
● The DC input voltage is
abnormal.
● The DC input power
cable is connected
reversely.
● Connect the DC loop.
● Adjust the DC voltage to a normal value
(43.2–58 V DC).
● Connect the DC input power cable
correctly.
Undervoltage
protection is
triggered after the
system is powered
on and loads are
added.
● The DC input voltage is
less than the minimum
value.
● The DC loop cable is
loose.
● Adjust the DC voltage to a normal value
(43.2–58 V DC).
● Connect the DC loop cable securely.
Overload protection
is triggered after the
system is powered
on.
The load power is greater
than the maximum value.
Decrease the load power to a proper range.
iSitePower Integrated Smart Site (ICC1000-A1-E1)
User Manual 4 Maintenance
Issue 04 (2022-10-15) Copyright © Huawei Technologies Co., Ltd. 113