Page top

Primary Contents

Question

Can an Inverter be operated and stopped using a magnetic contactor (MC)?

Answer



An Inverter can be operated and stopped by using a magnetic contactor (MC) on the primary side, but for the following reasons, do not turn the power supply ON and OFF frequently.

1.If the power supply is turned ON again before the inrush current prevention resistor cools, built-up heat will burn the resistor (abnormal resistor heat).

2.The service life of the relay that short-circuits the inrush current prevention resistor will be shortened.

3.The service life of the capacitor for the power supply section will be shortened.

A limit of once every 30 minutes is recommended for turning the power supply ON and OFF.

Recommended Products

NT20,NT31/31C-V3,NT631C-V3

Better SYSMAC Compatibility and Easier-to-use Support Software

NS Series

NS-series PTs navigate all areas of machine operation, from daily operation to error recovery.

CXONE-AL[][]C-V3 / -AL[][]D-V3

The CX-One is a comprehensive software package that integrates PLC Programming Software with Support Software for setting up Networks, Programmable Terminals, Servo Systems, Inverters, and Temperature Controllers.

Other Frequency Inverters FAQ