Huawei UPS5000-A-400 kVA User Manual page 32

UPS5000-A-400 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
SWITCH
STATUS_0V
SWITCH
Issue 05 (2019-12-24)
Description
grounding faults
Port for signal ground
Port for detecting diesel
generator (D.G.) 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
+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
Copyright © Huawei Technologies Co., Ltd.
Status
grounding fault
 Disconnected: no
battery grounding
fault
 Connected: D.G.
mode

Disconnected:
non-D.G. 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
 Connected: circuit
2 Overview
Initial Status
Disconnected
Grounded
Disconnected
0 V
Disconnected
Connected
Connected
Disconnected
Connected
24