Huawei UPS5000-A User Manual page 34

UPS5000-A-(400 kVA-600 kVA)
User Manual (60 kVA, PF=0.9)
Silk Screen
0V
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
Issue 06 (2022-01-27)
Description
Port for signal
ground
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
Copyright © Huawei Technologies Co., Ltd.
Status
● Disconnected: no
battery grounding
fault
● 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
27