Huawei UPS2000-A-RTL Series User Manual page 25

UPS2000-A-(6 kVA-10 kVA)-RTL
User Manual
Figure 2-4 6 kVA/10 kVA rear view
(1) AC input circuit
breaker
(4) AC input terminal
(behind the cover)
(7) Maintenance bypass
status port (MBS)
a: The USB port supports the standard Modbus protocol and connects to a PC through a USB cable so
that you can access the NMS, configure parameters, export data, and upgrade software.
Table 2-2 Port definitions
Port
EPO
MBS
Issue 07 (2020-01-10)
(2) Optional card slot (behind
the cover)
(5) AC output terminal (behind
the cover)
(8) USB port
security mechanism)
Status
NO
NO
Copyright © Huawei Technologies Co., Ltd.
(3) Battery wiring terminal
(behind the cover)
(6) EPO port
a
(protected by a (9) Reserved
Function
Connect an external switch to the EPO port on
the UPS. After you turn on the switch, the
inverter shuts down, and the UPS will not
transfer to bypass mode. Output terminals
completely power off, which meets the EPO
purpose.
If the UPS is equipped with an external
maintenance bypass switch, the MBS port can
be used to detect the on-off status of the
external maintenance bypass. If the port is
closed, it indicates that the UPS has detected
that the external maintenance bypass switch is
closed. At this time, the UPS will generate a
maintenance bypass switch closed alarm and
the system will transfer to bypass mode.
2 Overview
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