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UPS5000-A-30 kVA & 40 kVA & 80 kVA
User Manual
No.
05
06
07
08
09
10
11
12
Issue 11 (2018-12-10)
Item
Serial port connection (security
protection mechanism
supported)
Marks for tightened screws
Ground cable connections
Distances between cable ties
Correct cable connections
Connections of live wires and
neutral wires
Live wire sequence
Connection of positive and
negative input terminals of
batteries
Copyright © Huawei Technologies Co., Ltd.
Acceptance Criteria
Signal cables are connected properly and
securely.
Both ends of a cable are labeled. Labels are
clean and correct, and provide concise and
understandable description
The ground cable is securely connected to the
equipment room ground bar. Use a multimeter
to measure the resistance between the UPS
ground cable and the equipment room ground
bar. The resistance must be less than 0.1 ohm.
Distances between cable ties are the same
(recommended distance is 30 cm), and no burr
exists.
Cables are properly connected according to
wiring diagrams.
Connections for mains input terminals 1L1,
1L2, 1L3, and N, bypass input terminals 2L1,
2L2, 2L3, and output terminals U, V, W, and
N are correct.
In single UPS mode, live wires are connected
in a correct sequence; in a parallel system,
mains and bypass live wires are connected in
the same sequence on the input and output
sides.
Use a multimeter to check that the sum of the
absolute voltage of the negative battery string
and the voltage of the positive battery string is
greater than a certain value (2 x Number of
cells), and that the difference between the
absolute voltage of the negative battery string
and the voltage of the positive battery string is
less than the voltage of a battery (2 V or 12
V).
3 Installation
95
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