9
5
(Optional) Connecting Cables to EPO Port
NOTE
1. Connect an external switch to the EPO ports. One second after you turn on the switch, which
means that terminals 1 and 2 are short-circuited, the inverter stops, and the bypass mode is
disabled. In this way, the UPS stops supplying power immediately.
2. The customer provides the external switch (it can be a common switch) that connects to EPO
ports.
6
Verifying the Installation
No.
Item
Result
1
If the input or output system changes, ensure the correct short-circuit copper bar
status and cable connections are applied to the input and output ports.
□
Passed
□
Failed
2
The input phase sequence is correct. Use a multimeter to check that the input
and output are not short-circuited.
□
Passed
□
Failed
3
Cables and terminals are securely connected.
□
Passed
□
Failed
4
Battery cables and terminals are connected correctly, and voltages comply with
industry standards.
□
Passed
□
Failed
5
The UPS is properly connected to battery strings.
□
Passed
□
Failed
6
Input circuit breakers and load circuit breakers are OFF.
□
Passed
□
Failed
7
Power cables and signal cables are correctly identified.
□
Passed
□
Failed
8
Ground cables are firmly connected. The voltage difference between a neutral
wire and a ground cable is less than 5 V AC.
□
Passed
□
Failed
9
The mains supply voltage is 73
–144 V AC during power-on (73–144 V AC after
power-on). The battery voltage is greater than 46.5 V DC.
□
Passed
□
Failed
Symbol
Description
Remarks
Press A.
A and B indicate operation symbols on
the control panel.
Press A and then B.
Indicates omitted screens.
N/A
A
A
B
7
Powering On and Starting the UPS
User interface (UI) snapshots shown in this document correspond to V200R001C91SPC070 and
are for reference only. If any UI changes are made, contact Huawei technical support to obtain
the latest snapshots.
NOTE
