Prepare to Troubleshoot Internal Components
2
Powermax65/85/105 SYNC
Troubleshooting Guide
810430
29
6.
Measure the resistance from the input leads to ground to make sure that they read as open.
Look for the
symbol on the heatsink
. For all models, the resistance from input to ground
must read as greater than 20 megaohms (MΩ).
With the power disconnected and the power switch set to OFF (
O
), all
circuits must read as open. The electrical values shown are ±25%.
Figure 1
– Power switch in the plasma power supply
1
L1
L2
L3
>20 MΩ
L1
L2
L3
CSA and 230 V – 400 V CE models
CCC and 400 V CE models
650 kΩ
650 kΩ
500 kΩ
>20 MΩ
400 kΩ
400 kΩ
400 kΩ
650 kΩ
1
1
Summary of Contents for Powermax105
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