Diagnostics and Troubleshooting
8
316
809480
Instruction Manual
XPR300
At approximately 25ºC (77ºF), you can expect a resistance of
approximately 10,000 ohms.
3.
If the resistance is above the maximum value, contact your cutting machine supplier or regional
Hypertherm Technical Service team. They can help you to decide if there is a wiring fault or if
thermistor replacement is necessary.
4.
If the resistance is at or near 0 ohms:
a.
Inspect the wiring between each thermistor and its connector pins.
b.
Look for shorts between wires or to the ground.
5.
If the resistance is above 100 ohms and below the minimum ohmic value:
a.
Remove the electrical power from the cutting system. (See
b.
Allow the coolant to reach 85ºC (185ºF) or below.
It can take a long time for the coolant to reach 85ºC (185ºF) or below if
the ambient temperature is high.
c.
Restore electrical power to the cutting system.
d.
Repeat
6.
If the resistance is within range, continue cutting system operation.
7.
If the resistance remains below the minimum ohmic value or does not change after you allow the
coolant to reach 85
º
C (185ºF) or below, contact your cutting machine supplier or Hypertherm
Technical Service team.
8.
If the thermistor resistance is within range when the thermistor is disconnected from the control
PCB and the code continues when the thermistor is reconnected to the control PCB, contact
your cutting machine supplier or regional Hypertherm Technical Service team. They can help you
decide if control PCB replacement is necessary. (See
Plasma power supply control PCB
9.
If the code continues, or if you cannot find or resolve the problem with these corrective actions,
contact your cutting machine supplier or regional Hypertherm Technical Service team.
125ºC (257ºF)
200
500
135ºC (275ºF)
150
400
145ºC (293ºF)
150
250
155ºC (311ºF)
125
225
165ºC (329ºF)
100
175
Thermistor temperature
Minimum resistance (Ohms)
Maximum resistance (Ohms)
Summary of Contents for XPR300
Page 1: ...XPR300 Plasma Instruction Manual 809480 Revision 2 English ...
Page 18: ...Contents 18 809480 Instruction Manual XPR300 ...
Page 34: ...Specifications 1 34 809480 Instruction Manual XPR300 ...
Page 66: ...Qualifications and Requirements 2 66 809480 Instruction Manual XPR300 ...
Page 188: ...Connect for Communication 4 188 809480 Instruction Manual XPR300 ...
Page 192: ...Coolant Installation 5 192 809480 Instruction Manual XPR300 ...
Page 230: ...Operation 6 230 809480 Instruction Manual XPR300 ...
Page 337: ...Parts List 9 XPR300 Instruction Manual 809480 337 ...
Page 343: ...Parts List 9 XPR300 Instruction Manual 809480 343 ...
Page 380: ...Wiring Diagrams 10 380 809480 Instruction Manual XPR300 ...
Page 381: ...381 Overview Sheet 1 of 22 013403 013403 ...
Page 382: ...382 Plasma power supply 1 Sheet 2 of 22 013403 ...
Page 383: ...383 Plasma power supply 2 Sheet 3 of 22 013403 ...
Page 384: ...384 Plasma power supply 3 Sheet 4 of 22 013403 ...
Page 385: ...385 Plasma power supply 4 Sheet 5 of 22 013403 ...
Page 386: ...386 Plasma power supply 5 Sheet 6 of 22 013403 ...
Page 387: ...387 Plasma power supply 6 Sheet 7 of 22 013403 ...
Page 388: ...388 Plasma power supply 7 Sheet 8 of 22 013403 ...
Page 389: ...389 Gas connect console 1 Sheet 9 of 22 013403 ...
Page 390: ...390 Gas connect console 2 Sheet 10 of 22 013403 ...
Page 391: ...391 Torch connect console Sheet 11 of 22 013403 ...
Page 392: ...392 Coolant system Sheet 12 of 22 013403 ...
Page 393: ...393 Gas system 1 Sheet 13 of 22 013403 ...
Page 394: ...394 Gas system 2 Sheet 14 of 22 013403 ...
Page 395: ...395 Gas system 3 Sheet 15 of 22 013403 ...
Page 402: ...402 Wireless subsystem block diagram Sheet 22 of 22 013403 ...