Huawei UPS5000-E-30 kVA User Manual page 46

UPS5000-E-(30 kVA–180 kVA)
User Manual (Integrated UPS)
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 02 (2022-12-30)
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 Digital Power 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 Product Overview
Initial Status
Disconnected
Disconnected
Grounded
Disconnected
0 V
Disconnected
Connected
Connected
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