Kemppi FastMig X 450 Service Manual

SERVICE MANUAL
FASTMIG X
28 (37)
Kemppi OY
1.2 IGBT module V6
DIODE TEST:
• Diodes must be measured both forward bias and reverse bias condition to make sure they are fine
• Check the diodes using the multimeter diode function to measure their threshold voltage 0,3…0,6 V
• When measuring IGBT unit diodes you must disconnect other end (X7) of main transformer
Measurings:
Positive test lead Negative test lead Result
X20 X7 0,3-0,7VDC
X7 X20 no value
X20 X6 0,3-0,7VDC
X6 X20 no value
X13 X16 0,3-0,7VDC
X16 X13 no value
X15 X16 0,3-0,7VDC
X16 X15 no value
X20
X16
DC link (-)
DC link (+)

Kemppi FastMig X 450 Specifications

General

Brand	Kemppi
Model	FastMig X 450
Category	Welding System
Language	English