ABB_EM400技术说明书Ver1[1].1

EM400 技术说明书
0<|COSΦ|<1 0-252000kW 0-252000kvar 0-252000kVA 0-99999999.9kWh 45-55Hz
图 1-3-1 EM400 接线端子图
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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
EM400 技术说明书
2.5 通讯功能
z 通讯接口：RS485 方式，通信接口采用光电隔离，可用于参数设置或与上级系统通信； z 通讯速率 19200，9600，4800，2400，1200bps，最多可连接 32 台设备。
2.6 自诊断功能
设备运行时能够对自身工作状态进行自诊断，并通过通讯或显示方式向用户提供相应 的信息，提醒用户应及时进行检修。
EM400 技术说明书
EM400电力智能监控仪表
技术说明书
Ver1.1
EM400 技术说明书
目录
1 概述··············································································································································1
5 订货说明···································································································································· 11
1 概述
EM400 技术说明书
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2 功能简介
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表 1-1 EM400 接线端子定义
EM400 技术说明书
111213141516111213141516图3173p3w3pt1ct相电压接入方式接线图32通信接线方式通讯连接的线形连接方式其中阻抗匹配电阻阻值约为120?rs232rs485转换器32em400rs485portem400rs485portem400rs485port阻抗匹配电阻shldshldshldshld单点接大地shldshldshld阻抗匹配电阻shld图321em400通信的线形连接方式通讯连接的环形连接方式rs232rs485转换器32em400rs485portem400rs485portem400rs485portshldshldshldshldshld单点接大地shld图322em400通信的环形连接方式em400技术说明书33开关量输入接线em400可以监视个干节点输入的开关数字量状态采用光隔离输入隔离电压2500vac装置内部输出隔离的24vdc为干节点提供输入回路电源
4 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
远动终端设备 静电放电抗扰性试验 电快速瞬变脉冲群抗扰性试验 浪涌抗扰性试验
等级 3 等级 3 等级 3
1.2.2 工作参数
工作电源 模拟量采样率 显示更新速度
RS485 通讯
模拟量输入特性
开关量状态采集
继电器输出 变送输出 工作温度 贮藏温度 湿度 防护等级 重量
交流或直流电源 85VAC～265V 64 点/周期 <1 秒 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) 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 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 2 路，节点容量 5A/30VDC 或 5A/250VAC 1 路，直流 4~20mA 隔离输出，精度 1 级，最大负载 600Ω -25℃ ～ +70℃ -30℃ ～ +80℃ 95% 不结露 面板 IP50,壳体 IP30 360 克
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
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。
3 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
z 2 路继电器输出； z 继电器控制输出节点容量为 5A/30VDC 或 5A/250VAC； z 可以设置为常保持状输出态或脉冲输出状态。
2.4 直流变送器输出功能
z 1 路隔离输出(隔离电压 500VAC)； z 直流变送输出为 4～20mA；
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z 可任意关联电压、电流、功率、功率因数、频率各种电参量。 z 最大开路电压 24V，最大负载 600Ω
图 1-1 EM400 装置外观图
1.1 EM400 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
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1.2 主要技术指标
EM400 技术说明书
1.2.1 标准
GB/T 13729-2002 GB/T 17626.2-2006 GB/T 17626.4-1998 GB/T 17626.5-1999
1.2.3 监测技术指标
电压 电流
参数
0.2 级 0.2 级
精度
一次侧范围 0-42000V 0-6000A
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功率因数 有功功率 无功功率 视在功率 电能 频率
0.5 级 0.5 级 0.5 级 0.5 级 0.5 级 0.01Hz
1.3 EM400 接线端子定义
EM400 背部的接线端子编号及端子定义：
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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
z 电压 z 电流 z 频率 z 功率因数 z 有功功率 z 无功功率 z 视在功率 z 有功绝对值电度量 z 无功绝对值电度量
2.2 开关量监测功能
z 无源节点光隔离输入(隔离电压 2500VAC)； z 最大可同时采集 4 路开关量输入信号； z 连续记录 16 个 SOE 信息，可掉电保存。
2.3 继电器输出功能