TroubleshooTing and sysTem TesTs
powermax
65/85
Service Manual
5-55
Test 12 – AUX switch
Symptom: The display goes blank after “Hypertherm” appears. (CSA units only).
1. Turn the machine off and disconnect the power.
2. Disconnect the auxiliary switch cable from J1 on the power board.
3. Measure the resistance on the cable plug between Pin 4 and Pin 5.
4. If the power switch is closed (ON) there should be very low resistance.
5. If the power switch is open (OFF) there should be very high resistance.
6. If the resistance measurement doesn’t agree, check the cable, plug, and switch for opens or shorts.
Summary of Contents for Powermax 65
Page 1: ...Service Manual 807120 Revision 1 Plasma arc cutting systems ...
Page 10: ...vi powermax65 85 Service Manual ...
Page 16: ...Table of Contents xii powermax65 85 Service Manual ...
Page 32: ...Specifications 1 16 powermax65 85 Service Manual ...
Page 182: ...Troubleshooting and System Tests 5 56 powermax65 85 Service Manual ...
Page 216: ...Component Replacement 6 34 powermax65 85 Service Manual ...
Page 244: ...Wiring Diagrams 8 2 powermax65 85 Service Manual ...