REHM SYNERGIC.ARC 251 User Manual

Name: REHM SYNERGIC.ARC 251
Brand: REHM
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84 pages

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SYNERGIC.ARC 251-504

MIG/MAG inert gas welding systems

OPERATING INSTRUCTIONS

REHM SCHWEISSTECHNIK

Table of Contents3
Introduction6
Foreword6
General Description7
The Principle of the Inert Gas Metal Welding Process8
Intended Use8
Symbols Used9
Safety Instructions10
Warning Symbols in These Operating Instructions10
Warning Symbols on the System10
Notes and Requirements11
Unit Description14
Functional Description21
Overview of Operating Elements21
Control Panel Description22
Operating Elements22
Operating Elements23
Switching on27
Peculiarities of the Operating Panel27
Corner Menu Functions28
Corner Menu Welding Processes (Top Left)28
Msg28
MSG Manual28
Mma28
Gouging28
Corner Menu Operating Mode (Top Right)29
Two-Cycle Operating Mode29
Two-Cycle Operating Mode with Slope-Down30
Four-Cycle Operating Mode31
Four-Cycle Operating Mode with Slope-Down32
Spot33
Spot with Slope-Down34
Two-Cycle Interval35
Two-Cycle Interval with Slope-Down36
Four-Cycle Interval37
Four-Cycle Interval with Slope-Down38
Characteristic Curve Corner Menu39
Welding Process Corner Menu39
Focus.arc39
Power.arc (Msg)39
Infinitely Variable Operating Panel Description 5.5-5.940
Welding Current (A) Display Panel40
Voltage (V) Display Panel40
LBL Correction Display Panel40
Material Thickness Display Panel40
Wire Feed Speed Display Panel40
Characteristic Curve Info Bar40
Switching Level Display Panel41
Submenus41
MSG Parameters41
Parameter Settings41
Setting the MSG Welding Parameters41
Explanation of Welding Parameters42
Language Menu43
Saving and Loading Jobs44
Save Job44
Load Job44
Setup Submenu45
Control Lamps46
Other Functions47
Threading47
Gas Test47
Water Recirculation Cooling48
Temperature Monitoring of the Power Units48
External Cooling of the Power Units48
Fan and Water Pump Control48
Polarity Selection for Self-Protecting Cored Wires48
Accessories and Options49
Unit Versions, Accessories and Options49
Commissioning52
Safety Instructions52
Working under Elevated Electrical Risk in Accordance with the Regulations from IEC 974, en 60 974-1, TRBS 2131 and BGR 500 Section 2.26 (Previously VGB 15) (S)52
Positioning the Welding Unit52
Connecting the Welding Unit54
Cooling the Welding Unit54
Water Cooling for MIG/MAG Welding Torches54
Connecting the Welding Cables54
Connecting the Torch54
Inserting the Wire55
Operation56
Safety Instructions56
Checks before Switching on56
Connecting the Ground Cable56
Serious Risks During Welding57
Practical Instructions for Use59
Faults61
Safety Instructions61
Table of Faults61
Error Messages63
Maintenance and Repair64
Safety Instructions64
Maintenance Table65
Cleaning the Inside of the Unit65
Cooling Water Check66
Proper Disposal66
Circuit Diagrams67
Components and Spare Parts71
Characteristic Curve Wire Feeding Unit73
Technical Data78

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REHM SYNERGIC.ARC 251 Specifications

General

Brand	REHM
Model	SYNERGIC.ARC 251
Category	Welding System
Language	English

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REHM SYNERGIC.ARC 251 User Manual

Table of Contents

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REHM SYNERGIC.ARC 251 Specifications

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