软起动器
CMC-LX
中
文
说
明
书
版本：A/01安全注意事项
（1）主回路电源得电后即存在危险电压。
（2）不允许将输入端(1L1、3L2、5L3)接到输出端(2T1、4T2、
6T3)或(B1、B2、B3)。
（3）不允许软起动器输出端(2T1、4T2、6T3)和(B1、B2、B3)
!
接补偿电容或压敏电阻。
（4）软起动器与变频器互为备用时，二者输出端要彼此隔离。
（5）请勿尝试修复损坏的元器件，请与供货商联系。
（6）散热器的温度可能较高，请勿触摸。
（7）严禁在软起动输出端反送电。
（8）软起动器在起动或停止状态时，输出侧都存在高压。目 录
前 言··············································································································1
第一章 CMC-LX软起动器的作用及特点···················································2
1.1 作用····································································································2
1.2 特点····································································································2
第二章 收货检查····························································································4
第三章 使用条件及安装················································································6
3.1 使用条件····························································································6
3.2 安装方向····························································································7
3.3 安装空间····························································································7
3.4 电路安装····························································································7
第四章 电路连接····························································································8
4.1 基本接线原理图················································································8
4.2 三角形内接连接图··········································································10
4.3 典型应用接线图··············································································11
4.4 端子说明··························································································12
第五章 显示及操作说明··············································································13
5.1 面板示意图······················································································13
5.2 按键功能说明··················································································13
5.3 显示状态说明··················································································14
5.4 修改参数项操作流程······································································14
第六章 软起动器的控制模式······································································16
6.1 电流斜坡起动··················································································16
6.2 电压斜坡起动··················································································17
6.3 突跳转矩软起动··············································································17
6.4 自由停车··························································································18
6.5 软停车······························································································18
第七章 参数项及其说明··············································································19
7.1 起停控制参数菜单 L000~L016共17个参数·······················19
7.2 电机保护参数菜单 L100~L116共17个参数························19
7.3 端口设置参数菜单 L200~L216共17个参数·······················20
7.4 厂家设置参数菜单 L300~L316共17个参数·······················21
Ⅰ7.5 功能说明··························································································21
第八章 故障检测与排除··············································································25
8.1 故障代码表······················································································25
8.2 故障复位··························································································26
第九章 通讯控制··························································································27
9.1 协议内容··························································································27
9.2 总线结构··························································································27
9.3 协议说明··························································································27
9.4 通讯帧结构······················································································28
9.5 地址说明··························································································29
9.6 控制命令参数地址··········································································30
9.7 功能码概述······················································································31
9.8 通讯时间间隔··················································································31
9.9 注意事项··························································································32
9.10 通讯故障代码分析········································································32
第十章 日常维护··························································································33
附表一：软起标准接线规格型号及附件选用(以380V为例)··················34
附表二：CMC-LX系列附件安装使用说明···············································36
附表三：软起动器外形及开孔尺寸(以380V为例，单位：mm)···········37
附表四：软起动器选型················································································40
Ⅱ前 言
感谢您选择西安西驰电气股份有限公司生产的CMC-LX 系列电
动机软起动器。为了充分发挥软起动器的功能，请您按规程正确操作
和使用，并确保操作者的安全，在使用前请详细阅读本《产品说明书》。
当您在使用中发现疑难问题而本产品说明书无法提供解答时，请与西
安西驰电气股份有限公司或各地代理、经销商联系，我们将竭诚为您
服务。客服热线：4000-114-666。
1CMC-LX系列软起动器产品说明书
第一章 CMC-LX 软起动器的作用及特点
1.1 作用
CMC-LX系列电机软起动器是一种将电力电子技术，微处理器和
自动控制相结合的新型电机起动、保护装置。它能无阶跃地平稳起动/
停止电机，避免因采用直接起动、星/三角起动、自耦降压起动等传统
起动方式起动电机而引起的机械与电气冲击等问题，并能有效地降低
起动电流及配电容量，避免增容投资。同时CMC-LX系列软起动器内
部集成电流互感器，用户无需外接。
1.2 特点
 独特的SCR触发闭环控制算法
独特的SCR闭环控制功能，专为标准负载和重型负载特殊设计。
用户可根据负载情况选择限流起动和电压斜坡起动，实现绝对平滑的
无转矩震荡起动效果。
 控制精度高实时高效
采用高性能的Cortex-M332位内核CPU执行中心控制，速度快、
精度高、抗干扰能力强。
 优美的外观
专利保护的主回路三进六出结构，内置电流互感器方案，接线方
便、可靠性高。
 可配的标准Modbus-RTU协议
用户在选型时可根据现场需要，选配带标准Modbus-RTU通讯模
块或不带。