Mid Frequency Inverter, Resistance Welding Control

The mid frequency inverter can increase the frequency of a resistance transformer from 50/60Hz to 1000Hz to decrease the weight of its iron core, reduce secondary inductive losses and control energy and operating costs. It can be paired with automatic electrode-holders to form a portable and lightweight welding equipment set with excellent performance.

Features The amount of splashing is largely decreased for a high quality weld and a clean, safe, and comfortable welding environment Accurate control of welding parameters in 1 millisecond for the consistent welding results of multilayer steel plate, thick steel plate, high strength steel sheet and aluminum alloy Basic building blocks of an inverter and in-process monitoring of weld quality and data monitoring Stable welding control system to prevent weld defects Three-phase electric power system and medium frequency welding No capacitance compensation cabinet Small volume and light weight. Compatible with suspension welders HMI operator interface for easy operation Parameter

Model	EX-400	EX-720	EX-1100	EX-1980
Input voltage	Single phase/three phase 220/380V+-15%
Rated frequency	50/60HZ
Transformer voltage	DC500V
Working frequency	1KHZ-8KHZ	1KHZ-4KHZ	1KHZ-2KHZ	1KHZ-2KHZ
Current pattern	00MF/DC
Maximum output current20%	400A	720A	1100A	1980A
Continuous output current100%	120A	230A	400A	630A
Control pattern	KSR/KUR/KST
Current feedback pattern	primary/secondary
Operating display	text/HMI/PC
Data range(group)	7	256	64K	64K
Controlled equipment	Spot Welder/Projection welder/Seam Welder3T/Seam Welder1T/Suspension welder等
Communication station number	43472	1-255	1-255	1-255
Protocol	9600,7，E,1
Communication form	RS485/RS232
Control process	+-1%