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Do System Tests to Identify Defective Components
5
100
810430
Troubleshooting Guide
Powermax65/85/105 SYNC
Figure 20
– Powermax65/85 SYNC
Figure 21
– Powermax105 SYNC
Measure the resistance with the power OFF
1.
Set the power switch on the plasma power supply to OFF (
O
), and disconnect the power cord.
2.
Measure the resistance again between the pilot arc IGBT and J28 (or J29). Is the resistance
less than 100 ohms (Ω)?
If yes, continue with the next step.
If no, continue with
3.
Disconnect the torch from the plasma power supply.
WORK
LEAD
J26 (J27)
J28 (J29)
WORK
LEAD
J26 (J27)
J28 (J29)
System at idle
Gas is flowing
< 5 Ω
> 10 kΩ
1
1
2
2
RED
J27
WORK
LEAD
J26
J32
J28
RED
J27
WORK
LEAD
J26
J32
J28
System at idle
Gas is flowing
< 5 Ω
> 10 kΩ
1
1
2
2
Summary of Contents for Powermax105
Page 1: ...Powermax65 85 105 SYNC Troubleshooting Guide 810430 REVISION 0 ENGLISH ...
Page 12: ...Before You Begin 1 12 810430 Troubleshooting Guide Powermax65 85 105 SYNC ...
Page 174: ...System Diagrams 8 174 810430 Troubleshooting Guide Powermax65 85 105 SYNC ...
Page 180: ...System Diagrams 8 180 810430 Troubleshooting Guide Powermax65 85 105 SYNC ...