Huawei UPS5000-E User Manual page 46

UPS5000-E-(50 kVA–300 kVA)
User Manual (50 kVA Power Modules)
Silk Screen
GEN
0V
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
Issue 15 (2022-01-30)
Description
Port for detecting
diesel generator
(DG) mode
Port for signal
ground
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
+12V
EPO port
+12V
Port for monitoring
the UPS output
circuit breaker
Port for signal
ground
Port for monitoring
the maintenance
circuit breaker
Port for signal
ground
Copyright © Huawei Technologies Co., Ltd.
Status
● Connected: DG
mode
● Disconnected: non-
DG mode
● 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
2 Overview
Initial Status
Disconnected
Grounded
Disconnected
0V
Disconnected
Connected
Connected
Disconnected
37