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Instruction Manual
5-7
11
Table 5-1 X-Y THC error messages
* 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
Torch is in LOWER LIMIT
Press OPR
SCRN Key
During IHS the torch did
not reach the workpiece.
During cutting the torch hits
the Lower Limit.
• Reposition lifter, torch or workpiece.
• Select Diagnostic Screen B by pressing <B> on keypad.
Then press <SHIFT-B> to start tests. Check for the following:
– “Lower Limit Switch” indicates “Ok”
– “Lifter Type” indicates 2 (X-Y lifter)
• On THC control PCB, Motor Drive Interface, D54 should be
illuminated. D53 and D55 should be extinguished.
• Place THC in Manual Position Mode.
– Jog torch to Lower Limit position to activate switch. On THC
control PCB, Motor Drive Interface, D50 should illuminate.
– Jog torch up to deactivate switch, D50 should extinguish.
• Check Lower Limit switch and cable, replace if required.
Torch is in HOME LIMIT
Press OPR
SCRN Key
During IHS the torch retracted
to the Home Limit.
• Reposition lifter, torch or workpiece.
• Stall Force and IHS speed in combination or separately are
improperly set.
– Try a lower speed or a higher stall force.
• Select Diagnostic Screen B by pressing <B> on keypad. Then
press <SHIFT-B> to start tests. Check for the following:
– “Upper Limit Switch” indicates “Ok”
– “Lifter Type” indicates 2 (X-Y lifter)
• Place THC in Manual Position Mode.
– Jog torch to Home position to activate switch. On THC control
PCB, Motor Drive Interface, D49 should illuminate.
– Jog torch down to deactivate switch, D49 should extinguish.
• Check Home Limit switch and cable, replace if required.
EEPROM Checksum Error
Press OPR
SCRN Key
Changed the processors. This
error will occur one time after
upgrading software.
• Clear error by pressing <OPR SCRN> key and then reenter
parameters.
Lifter NOT Installed
Repower
Power up with no lifter cable
installed.
• Check that lifter I/O cable is connected at both ends.
Motion FAIL
Press OPR
SCRN Key
Torch did not reach Home position
during full retract.
• Verify torch is not blocked from moving.
• Check for an encoder problem.
• Place THC in Manual Position Mode.
– Jog torch to Home position to activate switch. On THC control
PCB, Motor Drive Interface, D49 should illuminate.
– Jog torch down to deactivate switch, D49 should extinguish.
• Check Home Limit switch and cable, replace if required.
