Dry Contact Card - Huawei UPS5000-S-1200 kVA User Manual

UPS5000-S-1200 kVA
User Manual

2.3.5.3 Dry Contact Card

Appearance
Figure 2-15 Dry contact card
Table 2-6 Functions of control signal ports on the dry contact card
Silk Screen Bypass
Unit
BTG Reserved
0V
GEN In use:
Controls
the entire
0V
UPS
system.
BCB_OL Reserved
BCB_STA
BCB_DRV
BCB_0V
EPO_NO In use:
Controls
Issue 04 (2019-06-25)
Power Description
Unit
In use: Port for detecting battery
grounding faults
Controls
the power
Port for signal ground
unit.
Reserved Port for detecting diesel
generator (D.G.) mode
Port for signal ground
In use: Port for detecting the BCB
box
Controls
the power
unit.
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
Reserved Emergency power-off
(EPO) port
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
2 Overview
Initial Status
Disconnected
Disconnected
Grounded
Disconnected
0 V
Disconnected
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