Hypertherm XPR300 - Page 271

Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 271
515
Failure
Main->Ch2 CAN
t/o
The main control PCB cannot
receive communications (at
least once-per-second) from
Chopper 2 through the CAN.
Refer to CAN codes (500 – 503, 510 – 513 for gas
connect console, 504 – 505, 514 – 515 for CAN
cable and jumper block, 507 – 508 for CAN
network and bus, 600 – 602 for no CAN
communication) on page 311.
None Remote on-off
520
Alert
Ignite t/o (no pilot
arc)
The sensor in Chopper 1 did
not measure current during
the 600-millisecond ignite
period because no current
path completes between the
nozzle and the electrode.
1. Make sure that the transfer height is correct and
that the torch is not in contact with the
workpiece.
2. Examine the consumables. Replace the
consumables that have damage or excess wear.
3. Make sure that both spark arrestors (also
known as spark ignitors) illuminate brightly.
4. Inspect the main contactor:
• Look for black or rough surfaces that are
difficult to remove.
• Make sure that the contactor closes
immediately after the Start command is applied.
5. If the contactor is bad, replace it.
6. Examine the pilot arc relay. Make sure that it
closes.
7. Examine the wiring. Make sure that the coil
receives 24 VDC.
8. Inspect the Start circuit/Pilot board. If the Start
circuit/Pilot board is bad, replace it.
9. Do a torch lead test. Refer to How to test
continuity between the nozzle and workpiece on
page 342.
End of cycle Start or set
process;
remote on-off
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with