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THEORY OF OPERATION | ||||||||||
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| FIGURE E.3 — INPUT POWER CIRCUITS |
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| ARC |
| TRIGGER | WIRE |
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| VOLTAGE | RECEPTACLE | SPEED |
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| CONTROL |
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| CONTROL |
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Return
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CIRCUIT LINE
BREAKER SWITCH
INPUT
RECEPTACLE
FAN
MOTOR
CONTROL | GAS | |
BOARD | ||
SOLENOID | ||
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| WIRE | |
| FEED | |
| MOTOR | |
| VOLTAGE FEEDBACK & | |
| MOTOR POWER |
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MAIN |
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| MAIN |
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TRANSFORMER |
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| BRIDGE |
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CHOKE
+
OUTPUT
TERMINALS
-
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INPUT LINE VOLTAGE, FAN MOTOR & MAIN TRANSFORMER
A circuit breaker is incorporated in the circuit to protect the unit from current overloads.
The main transformer receives the primary voltage from the Control Board and changes that high voltage and low current input power to a low voltage and high current output suitable for welding.
The fan motor is rated for the same AC Voltage as the welder and should run whenever the machine is Power Switch is turned ON.
NOTE: Unshaded areas of Block Logic
Diagram are the subject of discussion