Dry Contact Card - Huawei UPS5000-S-880 kVA User Manual

UPS5000-S-880 kVA
User Manual (CMI)

2.3.5.3 Dry contact card

Appearance
Figure 2-15 Dry contact card
Table 2-6 Ports on the dry contact card
Issue 02 (2020-01-10)
Silk Screen Description
BTG Port for detecting battery
grounding faults
0V Port for signal ground
GEN Port for detecting diesel
generator (D.G.) mode
0V Port for signal ground
BCB_OL Port for detecting the BCB
box
BCB_STA Port for monitoring the
battery switch
BCB_DRV Controls battery circuit
breaker trip. When the
voltage is +12 V, the circuit
breaker trips.
BCB_0V Port for signal ground
EPO_NO Emergency power-off (EPO)
port
EPO_12V +12 V
Copyright © Huawei Technologies Co., Ltd.
Status

Connected: battery
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
2 Overview
Initial Status
Disconnected
Disconnected
Grounded
Disconnected
0 V
Disconnected
30