Huawei UPS5000-E Series - Dry Contact Card

UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
2 Overview
Issue 11 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
36
Specifications

Hot-swappable

1 U high
2.3.4.3 Dry contact card
Appearance
Figure 2-20 Dry contact card
Table 2-6 Ports on the dry contact card
Silk Screen
Description
Status
Initial Status
BTG
Port for detecting battery
grounding faults

Connected: battery
grounding fault

Disconnected: no
battery grounding
fault
Disconnected
0V
Port for signal ground
GEN
Port for detecting diesel
generator (D.G.) mode

Connected: D.G.
mode

Disconnected:
non-D.G. mode
Disconnected
0V
Port for signal ground
BCB_OL
Port for detecting the BCB
box

Grounded: BCB
box connected

Disconnected:
BCB box not
connected
Grounded
BCB_STA
Port for monitoring the
battery switch

Connected: battery
switch ON

Disconnected:
battery switch
OFF
Disconnected
BCB_DRV
Controls battery circuit
breaker trip. When the
voltage is +12 V, the circuit
breaker trips.

0 V: battery switch
not tripped

12 V: battery
switch tripped
0 V
BCB_0V
Port for signal ground
EPO_NO
Emergency power-off (EPO)
port
If the normally open
(NO) port is
Disconnected