abb_em400技术说明书ver11].1资料.pdf

EM400 技术说明书 EM400电力智能监控仪表电力智能监控仪表 技术说明书技术说明书 Ver1.1 EM400 技术说明书 目目 录录 1 概述概述··············································································································································1 1.1 EM400 的内部结构及信息流程图 ······················································································ 1 1.2 主要技术指标··················································································································· 2 1.3 EM400 接线端子定义·········································································································· 3 2 功能简介功能简介······································································································································4 2.1 模拟量测量功能··············································································································· 4 2.2 开关量监测功能··············································································································· 4 2.3 继电器输出功能··············································································································· 4 2.4 直流变送器输出功能······································································································· 4 2.5 通讯功能··························································································································· 5 2.6 自诊断功能······················································································································· 5 3 接线方式接线方式······································································································································5 3.1 电气接线··························································································································· 5 3.2 通信接线方式··················································································································· 7 3.3 开关量输入接线··············································································································· 8 3.4 继电器输出接线··············································································································· 8 3.5 直流 4~20MA 变送输出接线 ··························································································· 8 3.6 接线注意事项··················································································································· 9 4 尺寸与安装尺寸与安装··································································································································9 4.1 装置的机械尺寸··············································································································· 9 4.2 安装方式··························································································································· 9 4.3 安装注意事项················································································································· 10 5 订货说明订货说明····································································································································11 EM400 技术说明书 1 1 概述概述 EM400 系列电力智能监控仪表是用于中低压系统（6～35kV 和 0.4kV）的智能化装置， 它集数据采集和控制功能于一身， 具有基本单回路交流电量的测量与计算、 电度量累计、 SOE 记录功能， 同时具有 4 路开关量输入监测、 2 路继电器输出、 1 路 4~20mA 直流变送输出功能。

EM400 具有面向用户的开放式通信协议，支持 RS485 通信接口，支持 MODBUS-RTU 网 络通信协议，可以方便地与各类计算机监控系统实现信息交换 图 1-1 EM400 装置外观图 1.1 EM400 的内部结构及信息流程图的内部结构及信息流程图 图 1-1-1 EM400 结构框图和信息流程图 EM400 技术说明书 2 1.2 主要技术指标主要技术指标 1.2.1 标准标准 GB/T 13729-2002 远动终端设备 GB/T 17626.2-2006 静电放电抗扰性试验 等级 3 GB/T 17626.4-1998 电快速瞬变脉冲群抗扰性试验 等级 3 GB/T 17626.5-1999 浪涌抗扰性试验 等级 3 1.2.2 工作参数工作参数 工作电源 交流或直流电源 85VAC～265V 模拟量采样率 64 点/周期 显示更新速度 1 秒 RS485 通讯 通讯协议：MODBUS-RTU 通讯速率：1200,2400,4800,9600,19200bps 节点容量 32 个 通讯响应时间：20ms(9600bps) 模拟量输入特性 电流额定值：5A； 范围：0.05～6 A 电流额定值：1A； 范围：0.01~1.2A 电压测量范围：20~450VAC 开关量状态采集 4 路，无源节点光隔离输入，隔离电压 2500VAC 去抖时间：60 ms 采集分辨率：≤2ms 继电器输出 2 路，节点容量 5A/30VDC 或 5A/250VAC 变送输出 1 路，直流 4~20mA 隔离输出，精度 1 级，最大负载 600Ω 工作温度 -25℃ ～ +70℃ 贮藏温度 -30℃ ～ +80℃ 湿度 95% 不结露 防护等级 面板 IP50,壳体 IP30 重量 360 克 1.2.3 监测技术指标监测技术指标 参数 精度 一次侧范围 电压 0.2 级 0-42000V 电流 0.2 级 0-6000A EM400 技术说明书 3 功率因数 0.5 级 0|COSΦ|1 有功功率 0.5 级 0-252000kW 无功功率 0.5 级 0-252000kvar 视在功率 0.5 级 0-252000kVA 电能 0.5 级 0-99999999.9kWh 频率 0.01Hz 45-55Hz 1.3 EM400 接线端子定义接线端子定义 EM400 背部的接线端子编号及端子定义： 图 1-3-1 EM400 接线端子图 PE 1 NC 17 L 2 NC 18 电 源 N 3 RO11 19 U1 4 RO12 20 U2 5 RO21 21 U3 6 继 电 器 输 出 RO22 22 电 压 输 入 Un 7 NC 23 SHLD 8 AO+ 24 RS+ 9 AO- 25 通 讯 RS- 10 NC 26 I11 11 变 送 输 出 NC 27 I12 12 DI1 28 I21 13 DI2 29 I22 14 DI3 30 电 流 输 入 I31 15 开 关 量 输 入 DI4 31 EM400 技术说明书 4 I32 16 COM 32 表 1-1 EM400 接线端子定义 2 功能简介功能简介 EM400 系列电力智能监控仪表是用于中低压系统（6～35kV 和 0.4kV）的智能化装置， 它集数据采集和控制功能于一身， 具有基本单回路交流电量的测量与计算、 电度量累计、 SOE 记录功能， 同时具有 4 路开关量输入监测、 2 路继电器输出、 1 路 4~20mA 直流变送输出功能。

2.1 模拟量测量功能模拟量测量功能 ? 电压 ? 电流 ? 频率 ? 功率因数 ? 有功功率 ? 无功功率 ? 视在功率 ? 有功绝对值电度量 ? 无功绝对值电度量 2.2 开关量监测功能开关量监测功能 ? 无源节点光隔离输入(隔离电压 2500VAC)； ? 最大可同时采集 4 路开关量输入信号； ? 连续记录 16 个 SOE 信息，可掉电保存 2.3 继电器输出功能继电器输出功能 ? 2 路继电器输出； ? 继电器控制输出节点容量为 5A/30VDC 或 5A/250VAC； ? 可以设置为常保持状输出态或脉冲输出状态 2.4。