MAI
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5-8
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for X
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ble
Instruction Manual
11
Table 5-1 X-Y THC error messages (continued)
* Error Messages for the RS-422 serial interface are the same as for the Pendant except they are preceded by ERR -.
Error Messages for the RS-422 serial interface are cleared by using the CL command.
Error Message*
Clear Error
Description of Error
Corrective Action
Motion FAIL
Press OPR
SCRN Key
Encoder failed during a cut.
• Verify torch is not blocked from moving.
• Check for an encoder problem.
• Place THC in Manual Position Mode.
- Jog torch up. On THC control PCB, Motor Drive Interface,
D58 and D59 should blink alternately.
• Check Lower Limit switch and cable, replace if required.
• Check Home Limit switch and cable, replace if required.
Watch Dog Timeout FAIL
Repower
A processor on THC control PCB
has failed.
• Call Hypertherm Technical Service.
InterProcessor Comm Fail
Repower
Changed real-time processor to a
higher revision level.
• Check firmware revisions in both processors for compatibility.
• Call Hypertherm Technical Service.
Nozzle Contact at Home
Press OPR
SCRN Key
Nozzle contact is being sensed
with lifter at Home position.
• Check ohmic contact wire connections at shield and inside
plasma interface assembly.
• Check ohmic contact wire for a short to ground.
Cycle Start ON at INIT
Press OPR
SCRN Key
Cycle start is active during THC
power up or while exiting
Maintenance Mode.
• Verify CNC start up signal is inactive.
Motor Current Fault
Press OPR
SCRN Key
Cable not installed or external
interlock not satisfied.
• Install cable. On THC control PCB, Motor Drive Interface, D51
should illuminate.
• On THC control PCB, Ext Interlock Ok, D16 should be
illuminated. If not, jumper machine interface cable at CNC at
pins 16 and 35 on plug J6.
See Section 3, External Emergency Interlock for details.
Machine Cable Missing
Repower
Cable not installed or external
interlock not satisfied.
• Install cable. On THC control PCB, Machine Interface Inputs,
D15 should illuminate.
• On THC control PCB, Ext Interlock Ok, D16 should be
illuminated. If not, jumper machine interface cable at CNC at
pins 3 and 22 on plug J6.
Plasma Cable Missing
Repower
Cable not installed.
• Check cable connections at both ends. On THC control PCB,
Plasma Interface Inputs, D23 should illuminate.
