Huawei UPS2000-G1-6 kVA User Manual page 23

UPS2000-G1-(6 kVA–10 kVA)
User Manual
Figure 3-7 RS232 pins
Table 3-2 RS232 pin description
Pin No.
1–5
6
7
8
9
----End
Connecting Cables to EPO Ports
In emergencies, such as floods and fire, emergency power-off (EPO) allows you to cut off
power supplies (in normal mode or bypass mode) to loads.
Connect an external button to the EPO ports. One second after you press the button, which
means that ports 1 and 3 are short-circuited, the inverter stops, and the bypass is also disabled.
In this way, the UPS output stops immediately.
Figure 3-8 shows how to connect cables to EPO ports.
Issue 05 (2013-07-17)
NOTE

For details about how to use the NetEco Express(RS232), see the NetEco Express(RS232) V100R001
User Manual.
 Pins on an RS232 port are identified uniquely. For details, see Figure 3-7 and Table 3-2.
1
5
9 6
Description
Reserved
Receives data.
Common terminal
Reserved
Sends data.
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