Product Details

Brief Introduction

 

This series of 3 phase induction motor soft starter requires regular maintenance, if there is too much dust, the insulation level of the soft starter will be reduced, which may prevent the soft starter from working properly. When cleaning, it is necessary to gently brush off the dust with a clean and dry brush or blow off the dust with compressed air.

 

If condensation occurs, it will reduce the insulation level of the soft starter and may prevent the soft starter from working properly. The professional personnel should use a hairdryer or electric stove to blow dry or dehumidify in the power distribution room during maintenance. Periodically check that the components of this series of 3 phase induction motor soft starter are intact and working properly. Check the cooling passages of the 3 phase induction motor soft starter to ensure that they are not clogged with dirt and dust. Maintenance checks must be performed after disconnecting all power to the incoming side of the soft starter!

 

CMC-T series 3 phase induction motor soft starter, providing RS485 communication interface, adopts international standard Modbus communication protocol for master-slave communication. Users can realize centralized control through PC/PLC, control upper computer, etc. to suit specific application requirements.

 

The Modbus serial communication protocol defines the frame content of asynchronous transmission in serial communication and the slave should sign the frame using the format, the host organization of the frame content includes: slave address, execution command, data and error checking. The slave's response also adopts the same structure, and the contents include: operation confirmation, return data and error checking. If the slave makes an error when receiving the frame, or fails to complete the action required by the host, it will organize a fault frame as a response back to the host.

 

The CMC-T series 3 phase induction motor soft starter communication protocol is an asynchronous serial master-slave ModBus communication protocol where only one device in the network can establish the protocol. Other devices can only respond to the host's "query/command" by providing data, or make corresponding actions according to the host's "query/command". A host is defined here as a personal computer (PC), industrial control device or programmable logic controller (PLC). Slave means CMC series 3 phase induction motor soft starter or other control devices with the same communication protocol.

 

Main Technical Parameters

 

Item	Basic parameters
Load Type	3-phase high-voltage squirrel-cage asynchronous motor,  synchronous motor
AC voltage	3000---10000VAC
Working frequency	50HZ / 60HZ ± 2HZ
Phase sequence	CMV allows to work in any phase sequence (can be set by parameter)
Bypass Contactor	Contactor with direct starting capacity
Control power	AC/DC(110-220V)±15％
Transient overvoltage protection	dv/dt absorption network
Start frequency	1-3 times/hour
Environmental conditions	Ambient temperature: -20-+50℃; Relative humidity: 5%--95% non-condensing; Altitude less than 1500 meters (more than 1500 meters need to be de-rated)

 

Specifications