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Diagnostics and Troubleshooting
8
XPR300
Instruction Manual
809480
345
7.
Examine the work lead. Replace it if you find damage or excess wear.
8.
Examine the pilot arc circuit (plasma power supply to gas connect console, to torch connect
console, to torch receptacle).
a.
If the pilot arc wire is damaged, replace the damaged item.
b.
If the pilot arc wire is not damaged, replace the torch and receptacle.
9.
Release the pilot arc relay and measure the ohms between the nozzle and workpiece. The
acceptable range is 9,000 – 11,000 ohms. If the ohms value is low (approximately 5,000 ohms
or less), examine the pilot arc circuit (power supply to gas connect console, to torch connect
console, to torch receptacle). Look for insulation damage and short circuits to ground.
How to measure resistance from thermistors
1.
Use a digital multimeter to measure the resistance from each thermistor wire, based on the
following connector-pin locations:
2.
Look for a resistance value that is outside of the minimum or maximum in
:
Thermistor location
Location of thermistor
wires/connector
1st connector
pin
2nd connector
pin
Inductor 1A
PCB 1
J1.4 pin 3
J1.4 pin 4
Inductor 1B
PCB 1
J1.4 pin 5
J1.4 pin 6
Inductor 2A
PCB 1
J1.4 pin 7
J1.4 pin 8
Inductor 2B
PCB 1
J1.2 pin 1
J1.2 pin 2
Transformer
PCB 1
J1.4 pin 1
J1.4 pin 2
Chopper 1
PCB 2
J9 pin 1
J9 pin 2
Chopper 2
PCB 3
J9 pin 1
J9 pin 2
Coolant temperature
PCB 1
J1.2 pin 7
J1.2 pin 8
Summary of Contents for XPR170
Page 1: ...XPR300 Instruction Manual 809480 REVISION 6 ENGLISH ...
Page 8: ......
Page 38: ...Specifications 1 38 809480 Instruction Manual XPR300 ...
Page 72: ...Qualifications and Requirements 2 72 809480 Instruction Manual XPR300 ...
Page 146: ...Installation 3 146 809480 Instruction Manual XPR300 ...
Page 202: ...Coolant Installation 5 202 809480 Instruction Manual XPR300 ...
Page 236: ...Operation 6 236 809480 Instruction Manual XPR300 ...
Page 360: ...Diagnostics and Troubleshooting 8 360 809480 Instruction Manual XPR300 ...
Page 406: ...Parts List 9 406 809480 Instruction Manual XPR300 ...
Page 417: ...417 Overview Sheet 1 of 22 013403 013403 ...
Page 418: ...418 Plasma power supply 1 Sheet 2 of 22 013403 ...
Page 419: ...419 Plasma power supply 2 Sheet 3 of 22 013403 ...
Page 420: ...420 Plasma power supply 3 Sheet 4 of 22 013403 ...
Page 421: ...421 Plasma power supply 4 Sheet 5 of 22 013403 ...
Page 422: ...422 Plasma power supply 5 Sheet 6 of 22 013403 ...
Page 423: ...423 Plasma power supply 6 Sheet 7 of 22 013403 ...
Page 424: ...424 Plasma power supply 7 Sheet 8 of 22 013403 ...
Page 425: ...425 Gas connect console 1 Sheet 9 of 22 013403 ...
Page 426: ...426 Gas connect console 2 Sheet 10 of 22 013403 ...
Page 427: ...427 Torch connect console Sheet 11 of 22 013403 ...
Page 428: ...428 Coolant system Sheet 12 of 22 013408 ...
Page 429: ...429 Gas system 1 Sheet 13 of 22 013403 ...
Page 430: ...430 Gas system 2 Sheet 14 of 22 013403 ...
Page 431: ...431 Gas system 3 Sheet 15 of 22 013403 ...
Page 438: ...438 Wireless subsystem block diagram Sheet 22 of 22 013403 ...