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LORCH
Welding System
S-Pulse
LORCH S-Pulse User Manual
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T
roubleshooting
- 62 -
02.20
909.2710.1-06
9.12
T
esting MOSFET
s
∞
Ω
0
Ω
MOSFET / IGBT - T
est
S
GS
G
D
S
GS
G
D
S
GS
G
D
S
GS
G
D
9V Batterie
9V battery
9V Batterie benutzen, um die
Drain-Source Strecke einzuschalten
Drain-Source Strecke ist niederohmig
Kurzschluss zwischen Gate und Source
um Drain-Source Strecke „auszuschalten“
Drain-Source Strecke ist hochohmig
9.13
Inside diagram diodes
61
63
Table of Contents
Default Chapter
3
Table of Contents
3
1 Machine Elements
4
2 Safety Precautions
6
Requirement
6
Testing Lorch Machines According to IEC 60974-4
6
3 Inverter Principle
7
4 Machine Wiring Diagrams
8
5 Common Logic Functions
12
6 Front Panels
12
Front Panel P-Synergic / S-Pulse / S
12
Speedpulse 3.0
12
Front Panel Functions S/P
12
Front Panel P-Basic
14
7 Pc-Boards
15
Pc-Board MAPRO05
15
Pc-Board DMR
20
Pc-Board PP90R
22
Pc-Board DMRPP04
23
Pc-Board ZVP
26
Pc-Board DS20BF
28
Pc-Board DS21BF
29
Pc-Board DS22BF
29
Pc-Board MAT-BF
30
Pc-Board DS-VA
31
Pc-Board DCDR21 / DCDR23
32
Pc-Board DK-PWRUP / DK-PWRUP02
35
Pc-Board DK-PWRUP04DKL / DK-PWRUP05-DKL
36
Pc-Board DP-S3NEFI
37
Pc-Board DK-GLCL3
39
Pc-Board DP-UFI-BO
40
Pc-Board DP-EMV
40
Pc-Board DS-ERW
41
Pc-Board TC21
43
8 Electrical Components
44
Current Sensor VAC
44
Control Transformer
46
TIG Option
47
9 Troubleshooting
48
Monitoring Temperature
48
Supply Voltages
49
Monitoring Welding Current
50
PE-Protection / Gas Pressure Switch
51
Cooling Unit
52
Monitoring Output Voltage
55
Monitoring Wire Feed Motor
56
Remote Control
58
Monitoring Primary Input Current
59
Monitoring Bus Voltage
60
Encoding Power Units
61
Testing Mosfets
62
Inside Diagram Diodes
62
Service Codes
63
Malfunction Codes
64
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LORCH S-Pulse Specifications
General
Brand
LORCH
Model
S-Pulse
Category
Welding System
Language
English
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