Current Transducer Test Component Locations - Lincoln Electric POWER WAVE S500 Service Manual

F-44
CURRENT TRANSDUCER TEST (continued)
FIGURE F.15 – CURRENT TRANSDUCER TEST COMPONENT LOCATIONS
MULTI-PHASE
OUTPUT CHOKE
ASSEMBLY
CURRENT TRANSDUCER
MULTI-PHASE CHOPPER
FEEDBACK
PROCEDURE
WARNING
ELECTRIC SHOCK
• Do not touch electrically live
parts or electrodes with your
skin or wet clothing.
• Insulate yourself from the work and ground.
• Always wear dry insulating gloves.
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1. Remove the input power to the Power Wave
S500 machine.
2. Perform the Case Cover Removal and
Capacitor Discharge Procedure.
3. Locate the output choke located on the left front
side of the machine. See Figure F.15. Also
locate the two Current Transducers that are part
of the output choke assembly.
TROUBLESHOOTING AND REPAIR
can kill.
POWER WAVE
CURRENT TRANSDUCER
OUTPUT CONTROL
FEEDBACK
4. Locate plug J8 on the Digital Control Board.
See Figure F.16. See Wiring Diagram.
5. Locate plug J42 on the Mult-Phase Chopper
Board. See Figure F.17. See Wiring Diagram.
6. Carefully apply the correct input power to the
Power Wave S500.
®
7. To check for the correct supply voltages per-
form the voltage checks on Table F.14.
NOTE: Do not attempt to check the voltages at the
current transducersʼ connectors. The ter-
minals are small and delicate and may be
® damaged if probed with meter leads.
® S500
F-44