ESAB LAW 500 User Manual

0740 800 025 9708
LAW 400/500
LAW 410/510
Welding rectifier
Service manual

ESAB LAW 500 Specifications

General

Power Source	Inverter
Input Current	32 A
Input Frequency	50/60 Hz
Welding Processes	MMA, TIG
Duty Cycle	60%
Efficiency	85%
Protection Class	IP23
Cooling System	Air
Rated Output	500 A

Summary

Read This First

Component Description Law 400/500

Connection Diagram Law 400/500 400-415 V

Connection Diagram Law 400/500 230-500 V

Connection Diagram Law 400-415 V

Connection Diagram Law 230-500 V

Function Description

Power Supply, Circuit Board AP1

Describes the DC power supplies (+25VC, ±15V, +15VB, +5V, +12V) and voltage regulator VR2 on circuit board AP1.

Fixed / Controlled Firing Angle

Processor

Lists processor functions: frequency measurement, voltage monitoring, overload/short-circuit protection, firing pulses, display management, crater filling, test routine, hot start.

Test Routine

Technical Data

Primary Connections Law; 230 - 500 V

Control Panel and Connections