If you see this condition... Do these steps...
D50 is illuminated while the discrete
cable stays disconnected.
1. Examine the PCB for dust or other contaminants.
2. Use compressed air to remove dust, debris, or obstructions, if found.
3. If D50 stays illuminated with the discrete cable disconnected, there is a
problem with the PCB. Speak to your cutting machine supplier.
D50 is not illuminated. 1. If the discrete cable has no visible damage, disconnect the cable from PCB
1.
2. Look for an open circuit between pin 3 and pin 4 of J14.
3. If the cable is good, make sure that the CNC output is set to OFF.
4. If there is a short circuit, make sure that the discrete cable is not shorted and
that the CNC start signal output is set to OFF. A closed circuit can be an
indication that the CNC sent a plasma-start signal or that the discrete cable
has damage.
The diagnostic code goes away, but
D50 is not illuminated while the dis-
crete cable stays disconnected.
1. Look for shorts across the line.
2. Look for relays that are bad.
3. Look for loose connections.
4. Examine the discrete cable, and replace it if it has damage. Refer to Discrete
CNC interface cables on page 429.
7. If you cannot find or correct the problem, speak to your cutting machine supplier or regional
Hypertherm Technical Service team.
Troubleshooting for over-temperature faults for inductors and
transformers
Diagnostic codes 580 – 586, 589, 793
These over-temperature diagnostic codes identify when the temperature of the inductors or transformers in
the plasma system is more than the permitted range.
Diagnostics and Troubleshooting
8
337811530Instruction ManualXPR460
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