
THEORY OF OPERATION |
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PROTECTIVE DEVICES AND CIRCUITS
THERMAL AND OVERLOAD PROTECTION
The POWER MIG 200 has two
The thermostats are
WIREFEED OVERLOAD PROTECTION
The POWER MIG 200 has solid state overload protection of the wire drive motor. If the motor becomes overloaded, the protection circuitry turns off the wire feed speed and gas solenoid. Check for proper size tip liner, drive rolls, and any obstructions or bends in the gun cable. Check for any other factors that would impede the wire feeding. To resume welding, simply pull the trigger. There is no circuit breaker to reset, as the protection is done with reliable solid state electronics.