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UPS5000-E-180 kVA
User Manual (Integrated UPS, 30 kVA Power
Modules)
Silk Screen
Type
GEN
DI
0V
BCB_OL
DI
BCB_STA
DI
BCB_DRV
DO
BCB_0V
EPO_NO
DI
EPO_12V
Issue 05 (2024-01-30)
Working
Signal
Principle
Description
Port for
detecting diesel
generator (DG)
connection
Port for signal
ground
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
Copyright © Huawei Digital Power Technologies Co., Ltd.
Status Description
The default value
is Open:
● GEN port closed:
DG connected
● GEN port open:
DG not
connected
The value can be
changed to
Closed:
● GEN port open:
DG connected
● GEN port closed:
DG not
connected
● 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.
2 Product Overview
System Action
The port is used
together with
the generator
power limiting
function. After
the setting takes
effect, the
system will limit
the PFC power
based on the
preset generator
power limit.
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.
38
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