Huawei UPS5000-E User Manual page 49

UPS5000-E-(60 kVA-125 kVA)
User Manual (Integrated UPS 3.0)
Silk Screen Type
BCB_OL DI
BCB_STA DI
BCB_DRV DO
BCB_0V
EPO_NO DI
EPO_12V
EPO_NC DI
EPO_12V
Issue 06 (2023-08-25)
Working Signal
Principle Description
Port for
detecting the
BCB box
Port for
monitoring the
BCB
Drives BCB
tripping. When
the voltage is
+12 V, the
circuit breaker
trips.
Port for signal
ground
Emergency
power-off
(EPO) port
+12V
EPO port
+12V
Copyright © Huawei Digital Power Technologies Co., Ltd.
Status Description
● Grounded: BCB
box connected
● Disconnected:
BCB box not
connected
● Closed: BCB On
● Open: BCB Off
● 0 V: not drive
BCB tripping
● 12 V: drive BCB
tripping
If the normally
open (NO) signal
port is connected
to the EPO_12V
port, EPO is
triggered.
If the normally
closed (NC) port is
disconnected from
the EPO_12V port,
EPO is triggered.
Before delivery, a
short-circuit cable
has been installed
on the NC and 12V
ports.
2 Product Overview
System Action
After the setting
takes effect, the
system will
detect whether
the BCB is
online.
Used to send a
BCB tripping
drive signal.
After the setting
takes effect, the
system will
generate an EPO
alarm and stop
supplying power.
After the setting
takes effect, the
system will
generate an EPO
alarm and stop
supplying power.
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