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SECTION 6
6.4 Testing and Replacing Components
NOTICE
ESP 400C and 600C Plasma Power Sources
•
Replace a PC board only until a problem was
isolated to that board.
•
Always disconnect power before removing or
installing a PC board.
•
Do not grasp or pull on board components.
•
Always place a removed board on a static free
surface.
•
If a PC board is found to be a problem, check
with your ESAB distributor for a replacement.
Provide the distributor with the part number of
the board as well as the serial number of the
power source.
•
Do not attempt to repair the board yourself.
Warranty will be voided if repaired by the
customer or an unauthorized repair shop.
Power Semiconductor Components
Three categories of power semiconductors include;
•
Power Rectifiers
•
Freewheeling Diodes
•
IGBTs
Troubleshooting
6-13
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