12: TROUBLESHOOTING
©Tormach® 2023
Specifications subject to change without notice.
Page 244 Tormach 1100M® Operator's Manual (Version 1223A)
For the most recent version, see tormach.com/support
Cause: A limit switch flag is improperly adjusted.
Probability How-To Steps Need More?
Low If the machine crashes into the hard stop during the referencing procedure:
1. Jog the machine to its reference position.
2. From the PathPilot interface, on the Settings tab, clear the Limit Switches
checkbox. Then, on the dialog box, select OK.
3. Push in the Emergency Stop button on the operator box.
4. Adjust the limit switch flag so that the limit switch's red LED is off.
5. Jog the machine off of the limit switch.
6. From the PathPilot interface, on the Settings tab, select the Limit Switches
checkbox to re-enable the limit switches.
For information, see "The machine is stuck on a limit switch." earlier in
this section.
If the limit switch flags are improperly
adjusted, the limit switch won't trigger
when the machine is referenced.
Instead, the axis will crash into the
hard stop.
Cause: The control board is defective.
Probability How-To Steps Need More?
Low
Go to "Limit Switch Function Reference" (below).
A defective control board will report no
change in the state of the limit switch,
even though the switch and wiring are
functioning properly.
Limit Switch Function Reference
Input Status Reported from the
Status Tab
Test to Perform on
Wiring at the Machine
Control Board
Results and Conclusions
The X Limit light is always on,
even though the switch is not
actuated.
Jumper wires 409 to 414
on the machine control
board.
l If the light doesn't go out when the terminals are jumped, the
machine control board is defective.
l If the light goes out when the terminals are jumped, the wiring
has a break or the limit switch is defective.
l If the diagnostic light is off, the wiring is OK and the switch is
defective.
l If the diagnostic light is on, the wiring has a break or defective
connection.
The Y Limit light is always on,
even though the switch is not
actuated.
Jumper wires 410 to 414
on the machine control
board.
The Z Limit light is always on,
even though the limit switch is
not actuated.
Jumper wires 411 to 414
on the machine control
board.
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