Hypertherm THC ArcGlide User Manual
Page 193
ArcGlide THC Instruction Manual 806450
193
4 – Maintenance
3
LIFTER HOME TIMEOUT
While the lifter is moving
toward home position, the
control module is reading
negative motion from the
lifter motor but the HOME
switch input or stall force
was not sensed after a
reasonable length of time.
• The slide mechanics are
malfunctioning.
• Verify that the lifter moves when the
motor is operating.
• Examine the coupling between the motor
and the ball screw. Verify that the set
screws are tightened correctly.
• Examine the lifter cables for damage.
4
PLATE CONTACT AT
HOME
The Nozzle Contact Sense
input turns ON while the
lifter is in the home
position.
• The Nozzle Contact input is
active while the upper limit
switch is active.
• Examine the torch tip for an electrical
short between the shield and nozzle.
• Turn off Nozzle Contact IHS if the lifter is
being used with a water table or water
injection torch.
• If the torch is an HPRXD torch, ensure
the coolant is not
conductive.
• The upper limit switch is faulty.
• Go to the diagnostic screen in the
Hypertherm CNC, HMI, or control
module (See
page 142). Verify that the upper limit
switch is operating correctly.
• The nozzle contact wire is
damaged.
• Examine the ohmic contact wire for
damage, and replace it if necessary.
• There is a floating ground.
• Verify that the lifter and control module
are grounded correctly. The lifter and
control module should have separate
ground wires between the ground stud
on the lifter, control module, and star
ground on the gantry or table.
Error
Description
Causes
Solutions