1408-EM3A-ENT PowerMonitor 1000系列的需求、能量和功率监控模块

1408-EM3A-ENT模块是Allen-Bradley PowerMonitor 1000系列的需求、能量和功率监控模块。作为PowerMonitor 1000系列的一部分，Allen-Bradley提供的其他类型的设备包括基本消耗量表和基本消耗量及故障排除表。1408-EM3A-ENT模块上提供了一个集成以太网端口，用于网络通信。1408-EM3A-ENT模块可在DC和交流输入电压下运行。1408-EM3A-ENT模块旨在用作电路保护装置，不应用作电路保护继电器或电机过载继电器。为防止人身伤害和设备损坏，在开始任何与1408-EM3A-ENT模块的安装或维护相关的工作之前，必须断开所有电源。否则会导致财产损失、人身伤害甚至死亡。只有经过培训的技术人员才能从事与1408-EM3A-ENT模块的安装和维修相关的活动。

1408-EM3A-ENT模块连接到三相或分相交流电源系统。它将电压和电流值转换为数字值，然后使用这些数字值来计算功率、能量、电压和电流。RS-485接口支持的协议包括Modbus RTU从机、DH-485、DF1半双工从机和DF1全双工协议。设备的控制输入可以是120至240伏交流电或125至250伏DC。1408-EM3A-ENT变频器的工作温度范围为-10至60摄氏度。介电耐受等级符合UL61010和EN61010标准。对于端接于1408-EM3A-ENT变频器上的电压和电流检测输入端的电线，仅推荐使用22至14 AWG铜线。

1408-EM3A-ENT

The 1408-EM3A-ENT module is a demand, energy, and power monitor module from the Allen-Bradley PowerMonitor 1000 family. Other types of devices which are available form Allen-Bradley as part of PowerMonitor 1000 family include basic consumption meters and basic consumption and troubleshooting meters. An integrated Ethernet port is provided on the 1408-EM3A-ENT module for network communication. The 1408-EM3A-ENT module can operate with both DC and AC input voltage. The 1408-EM3A-ENT module is intended for use as a circuit protective device and it should not be used as a circuit protective relay or as a motor overload relay. To prevent injury and equipment damage, all sources of power must be disconnected prior to beginning any work related to the installation or maintenance of the 1408-EM3A-ENT module. Failure to do so can lead to property damage, injury, or even death. Only trained technicians should undertake activities relating to the installation and repair of the 1408-EM3A-ENT module.

The 1408-EM3A-ENT module connects to a three-phase or split-phase AC power system. It converts the voltage and current values to digital values and then uses the digital values for calculating the power, energy, voltage, and current. Protocols supported by the RS-485 interface include the Modbus RTU slave, DH-485, DF1 half-duplex slave, and DF1 full-duplex protocols. The control input to the device can be either 120 to 240 Volts AC or 125 to 250 Volts DC. The working temperature range for the 1408-EM3A-ENT drive is -10 to 60 degrees Celsius. The dielectric withstand rating complies with the UL61010 and EN61010. Only 22 to 14 AWG copper wire is recommended for wires that terminate on the voltage and current sensing inputs on the 1408-EM3A-ENT drive.