Huawei UPS5000-H Series User Manual page 39

UPS5000-H-(400 kVA-600 kVA)
User Manual (100 kVA Power Module)
● A dry contact card port takes effect only after you set it in the software. You
● Set the EPO port to normally open (NO) or normally closed (NC) as required.
● If multiple UPSs are connected in parallel, connect all used dry contact signals
● Signal cables must be double-insulated twisted cables. If the cable length is
● For dry contact outputs, the rated DC voltage and current are 24 V DC and 0.6
Figure 4-6 Appearance
Table 4-7 Functions of control signal ports on the dry contact card
Silk Screen
BTG
0V
GEN
0V
BCB_OL
Issue 01 (2020-11-30)
NO TICE
need to disable unused dry contact signals.
to each UPS.
within 25–50 m, the cross-sectional area must be 0.5–1.5 mm
A and the maximum values are 30 V DC and 1.0 A. The rated AC voltage and
current are 24 V AC and 0.6 A and the maximum values are 30 V AC and 1.0 A.
During cable connection, ensure that the voltage and current do not exceed
these maximum values.
Signal Description
Port for monitoring battery
grounding failures
Port for signal ground
Port for detecting the diesel
generator (DG) mode
Port for signal ground
Port for monitoring the
battery circuit breaker (BCB)
box
Copyright © Huawei Technologies Co., Ltd.
4 Component Description
2
.
Status
Description
● Closed: There is
a battery
grounding
failure.
● Open: There is
no battery
grounding
failure.
● Closed: DG
mode
● Open: non-DG
mode
● Grounded: BCB
box connected
● Disconnected:
BCB box not
connected
Initial
Status
Open
Open
Grounde
d
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