Huawei UPS5000-S Series User Manual page 48

UPS5000-S-(50 kVA-300 kVA)
User Manual
Silk Screen
BCB_OL
BCB_STA
BCB_DRV
BCB_0V
EPO_NO
EPO_12V
EPO_NC
EPO_12V
SWITCH
STATUS_OUT
SWITCH
STATUS_0V
SWITCH
STATUS_MT
SWITCH
STATUS_0V
SWITCH
STATUS_BP
Issue 11 (2020-12-07)
Description
Port for detecting the
BCB box
Port for monitoring the
battery switch
Controls battery circuit
breaker trip. When the
voltage is +12 V, the
circuit breaker trips.
Port for signal ground
Emergency power-off
(EPO) port
+12 V
EPO port
+12 V
Port for monitoring the
UPS output circuit
breaker
Port for signal ground
Port for monitoring the
maintenance circuit
breaker
Port for signal ground
Port for monitoring the
bypass input circuit
breaker
Copyright © Huawei Technologies Co., Ltd.
Status
● Grounded: BCB
box connected
● Disconnected:
BCB box not
connected
● Connected:
battery switch
ON
● Disconnected:
battery switch
OFF
● 0 V: battery
switch not
tripped
● 12 V: battery
switch tripped
If the normally
open (NO) 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.
● Connected:
circuit breaker
ON
● Disconnected:
circuit breaker
OFF
● Disconnected:
circuit breaker
ON
● Connected:
circuit breaker
OFF
● Connected:
circuit breaker
ON
2 Overview
Initial
Status
Grounded
Disconnecte
d
0 V
Disconnecte
d
Connected
Connected
Disconnecte
d
Connected
38