UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
Copyright © Huawei Technologies Co., Ltd.
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
Port for detecting battery
grounding faults
Connected: battery
grounding fault
Disconnected: no
battery grounding
fault
Port for detecting diesel
generator (D.G.) mode
Connected: D.G.
mode
Disconnected:
non-D.G. mode
Port for detecting the BCB
box
Grounded: BCB
box connected
Disconnected:
BCB box not
connected
Port for monitoring the
battery switch
Connected: battery
switch ON
Disconnected:
battery switch
OFF
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
Emergency power-off (EPO)
port
If the normally open
(NO) port is