Huawei UPS5000-A - Page 54

Identier Type Working
Principle
Signal
Description
Status
Description
System Action
SWITCH
STATUS_BP
DI Port for
monitoring
the PDC
bypass input
switch status
(This port can
also be
dened as the
port for
monitoring
the system
maintenance
switch status
on the UI.)
The default value
is Closed:
● BP port closed:
The bypass
input switch or
system
maintenance
switch is ON.
● BP port open:
The bypass
input switch or
system
maintenance
switch is OFF.
The value can be
changed to Open:
● BP port open:
The bypass
input switch or
system
maintenance
switch is ON.
● BP port closed:
The bypass
input switch or
system
maintenance
switch is OFF.
PDC bypass
input switch:
After the setting
takes eect, the
system will
generate a PDC
bypass input
open alarm.
System
maintenance
switch: After the
setting takes
eect, the
system will
generate a
system
maintenance
bypass circuit
breaker closed
alarm and
transfer to static
bypass mode.
SWITCH
STATUS_0V
Port for signal
ground
EPO_12V DI +12V If the NO signal
port is connected
to the EPO_12V
port, EPO is
triggered.
After the setting
takes eect, the
system will
generate an EPO
alarm and stop
supplying power.
EPO_NO If the NO
signal port is
connected to
the EPO_12V
port,
emergency
power-o
(EPO) is
triggered.
NO TE
When connecting the dry contact signal cable of an external device to a UPS dry contact,
ensure that the silk screens of the dry contacts at both ends of the cable are consistent.
UPS5000-A-(30 kVA-120 kVA)
User Manual 2 Product Overview
Issue 17 (2024-02-21) Copyright © Huawei Digital Power Technologies Co., Ltd. 45