Kempomig Feed 420R, 120R / 0429 – 3© COPYRIGHT KEMPPI OY1. PREFACE1.1. INTRODUCTIONCongratulations on having purchased this product. Properly installed Kemppi products shouldprove to be productive machines requiring maintenance at only regular intervals. This manual isarranged to give you a good understanding of the equipment and its safe operation. It alsocontains maintenance information and technical specifications. Read this manual from frontto back before installing, operating or maintaining the equipment for the first time. For furtherinformation on Kemppi products please contact us or your nearest Kemppi distributor.Specifications and designs presented in this manual are subject to change without prior notice.In this document, for danger to life or injury the following symbol is used:Read the warning texts carefully and follow the instructions. Please also study the Operationsafety instructions and respect them when installing, operating and servicing the machine.1.2 PRODUCT INTRODUCTIONKempomig Feed 420R together with Feed 120R is a welding system designed for roboticand automated welding. It consists of Feed 420R with inbuilt robot interface and a robot armmounted feed unit Feed 120R. These two units are connected with an intermediate cableassembly.Manual control is possible by using an interchangeable control panel with basic controls anddisplays for MIG welding and synergetic MIG.Welding operation is controlled by microprocessor. The wire feed motor includes an amplifiedtachometer feedback system to ensure accurate wire feed speed.The interface stage handles all major I/O signals for automated requirements.