nader NDM2E Series Product Manual page 13

文件编号：NDT2920018 文件版本：5
Constant light of overload indicator indicates that actual current Isd more than 1.5 times of overload
long-time delay current setting IR. The breaker will break the circuit after certain duration.
（3）电源指示灯 Power light
电源指示灯，在控制器得电后，开始闪烁，闪烁频率约为 1Hz，表明当前控制器处于有电状态，也可以表
明控制器处于正常工作状态。
When the controller Isd powered on, the power indicator light starTsd flashing. The flashing frequency
Isd about 1Hz, indicating that the controller Isd in the active state. It also indicates that the controller Isd
in the normal working state.
3.2.3 NDM2E 控制器通讯功能 Communication function of NDM2E controller
NDM2E 通讯功能通过外挂式通讯模块来实现"四遥"功能。该通讯模块可将断路器的相关信息经现场总线
传至上位机，上位机通过通讯模块下发指令操作电动操作机构，从而控制断路器的合、分。
The communication function of NDM2E can achieve "Four-remoteness" functions through the external
hanging communication modules. The communication module can transfer relevant information of the
breaker to upper computer through on-site bus, and then the upper computer can use the instructions
released by the communication module to operate the motor-operated mechanIsdm, and achieve
closing and opening of the control breaker.
通讯模块上传的信息包括：Information uploaded by the communication module includes:
· 断路器设备代码；Equipment code of the breaker;
· 断路器各参数设定值；Setting values of the breaker's parameters;
· 断路器的合、分状态；Closing and opening state of the breaker;
· 通过断路器每极的实时电流。Real-time current passing through each pole of the breaker
NDM2E 断路器通讯接口的现场总线规约为：Modbus—RTU。
The on-site bus protocol of NDM2E breaker's communication port: Modbus—RTU
注：通讯型断路器（T 型、GT 型）默认波特率为 9600、通讯地址为 3。
Notes: The default baud rate of communication breaker (T type, GT type) Isd 9600, and the
communication address Isd 3.
3.2.3.1 通讯模块 Communication module
图 2：通讯模块实物图 图 3：通讯背包安装尺寸图
Fig. 2: Entity figure of the communication module Fig. 3: Dimension figure for installation of the communication backpack
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