Huawei UPS5000-E User Manual page 41

UPS5000-E-(60 kVA-125 kVA)
User Manual (Integrated UPS 3.0)
Table 2-6 Ports on the dry contact card
Silk Screen
BTG
0 V
GEN
0V
BCB_OL
BCB_STA
BCB_DRV
BCB_0V
EPO_NO
EPO_12V
EPO_NC
EPO_12V
SWITCH
STATUS_OUT
SWITCH
STATUS_0V
Issue 03 (2022-01-19)
Description
Port for detecting
battery grounding
faults
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 BCB
Controls BCB 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
Copyright © Huawei Technologies Co., Ltd.
Status
● Connected:
battery
grounding fault
● Disconnected:
no battery
grounding fault
● Connected: DG
mode
● Disconnected:
non-DG mode
● Grounded: BCB
box connected
● Disconnected:
BCB box not
connected
● Connected: BCB
ON
● Disconnected:
BCB OFF
● 0 V: BCB not
tripped
● 12 V: BCB
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
2 Overview
Initial Status
Disconnected
Disconnected
Grounded
Disconnected
0 V
Disconnected
Connected
Connected
33