External Dry Contact Card - Huawei RMS-SNMP01A User Manual

RMS-SNMP01A SNMP Card
User Manual
Table 3-5 Mapping between wiring terminals and signals
Pin
1
2
3
4

3.5.5 External Dry Contact Card

An external dry contact card can be configured for the SNMP card. You are advised to
configure an external dry contact card of the model RMS-RELAY02B.
Figure 3-13 External dry contact card
(1) External dry contact card
(4) RS485_IN port
Issue 08 (2020-01-09)
CIM Signal
+12 V
–12 V
AI
GND
Arrange the positive and negative Hall effect sensor cables based on the battery string number in the
sequence of first positive and then negative.
Copyright © Huawei Technologies Co., Ltd.
Hall Effect Sensor
Signal
+12 V
–12 V
M
GND
(2) RUN indicator
(5) RS485_OUT port
3 Installation and Basic Settings
Description
Detects the charge and
discharge currents of four
battery strings, namely
eight battery routes.
(3) ALM indicator
(6) Dry contact
18