4-16 ArcGlide THC Instruction Manual
MAINTENANCE
2
Problem Solution
Unable to establish communication with the
CNC or plasma system.
1. Check Hypernet cables from the ArcGlide.
2. Verify that the Ethernet switch is powered ON.
3. Verify that the plasma control board is not receiving dual serial signals.
If the CNC communicates directly with the plasma system over a
serial (RS-422) cable, verify that the correct cable (123760) is used
to connect the control board and the ArcGlide plasma interface PCB.
No response to CYCLE-START-IN at THC.
1. Check power to the control module.
2. Check line input fuses in the power module of the control module.
3. Check for a bad Cycle Start connection in the CNC input screen on
the THC controller display. Check the machine interface inputs on the
THC control PCB.
4. Check external interlock OK on control PCB.
5. Verify that the corresponding station is enabled and that the green
Enable light on the lifter is illuminated.
Arc ignites before IHS is complete.
1. Check that the Hold signal is reaching the plasma system.
2. If plasma system has a Hold signal, check that it is wired properly.
3. Check and adjust the Stall Force value.
4. Check that the plasma system coolant meets manufacturer
specifications.
5. Check for false Ohmic contact sense.
6. Verify that the corresponding station is enabled on the lifter, HMI, or
CNC.
The green Enable light on the lifter is not
illuminated.
Refer to the Install the lifter in the Installation section.
The torch does not approach workpiece at
programmed IHS speed and stall force.
1. Check that the THC is in Automatic Mode. If not, change the mode to
Automatic.
2. Check that Stall Force is not set too low.
3. Check that IHS Speed is not set too high.
4. Check for cable and hose obstructions that may stop movement.
Problems and solutions
The following table lists problems and provides solutions for each problem.
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