Huawei UPS5000-E-400K-FMS Quick Manual page 7

7. Connect the bypass input power cable.
9. Connect signal cables.
The figure shows the signal cable routing
and is for reference only. Connect the
cable based on the actual situation.
8. Connect the battery cable.
Route a neutral wire from the middle of the
positive and negative battery strings.
Take a battery string consisting of 40 batteries as
an example. A neutral wire is routed from the
middle of positive and negative battery strings,
each consisting of 20 batteries.
For the cable connection method for
the TN-C system, see the user manual.
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