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RMS-RELAY02B External Dry Contact Card
User Manual
Figure 2-3 Dry contact port
Table 2-2 Dry contact pin definitions
Functio
n
Dry
contact
Issue Draft A (2017-01-19)
Termin
No.
Pin
al Type
Definition
LS
DO
1
spring-ty
1
2
pe
terminal
3
4
DO
2
5
6
7
DI1
8
DO
9
3
10
11
12
DO
4
13
14
15
DI2
16
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Copyright © Huawei Technologies Co., Ltd.
Preset Value on
the SNMP Card
WebUI
Mains
NC_1
N/A
mode
COM_
1
NO_1
NC_2
Battery
N/A
mode
COM_
2
NO_2
DI1
Shutdown
NO
GND
Bypass
NC_3
N/A
mode
COM_
3
NO_3
NC_4
Batt.
N/A
undervolt.
COM_
4
NO_4
DI2
None
NO
GND
2 Overview
Function
Customers can set the
associated event of the
dry contact port and
set the type of input
dry contact (DI). For
details, see
3.4
Software
Settings.
The associated
event of DO1 to
DO4 can be set to
None, Critical
alarm, Minor
alarm, Mains
mode, Battery
mode, Bypass
mode, Inverter
on, Batt.
undervolt.,Bypass
backfeed , High
ambient temp., or
UPS fault.
The associated
event of DI1 and
DI2 can be set to
None, Startup, or
Shutdown. The
type of DI1 and
DI2 can be set to
NO or NC.
5
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