Z axis THC upgrade on Crossfire

LS-THC (Torch Height Control)
1

Hello everyone. I just recently upgraded my crossfire with the z axis THC and a new Firecontrol controller unit. I am running a Hypertherm 45xp with the cnc port and the Langmuir plug and play adapter cord.
I attempted to do a dry straight cut run with IHC and am getting an alarm that states: “IHS fail. The torch is not in the expected initial state before starting IHS cycle. Ensure there is sufficient slack in your torch head”. I confirmed that there is plenty of slack for the hypertherm manual torch head. I also noticed that when manually moving the z axis, the actual distance moved is a lot less than the distanced chosen.
This retrofit kit required the z axis driver to be installed in the new controller box. Looking through pictures for the Crossfire manual, it appears that the #2 dip switch on the z axis driver is in a different position than the rest of the 6, but nothing was mentioned in the instructions. I distinctly remember seeing all the switches on my z axis driver in the same location.
Does anyone out there have any thoughts on these issues? A little frustrated after spending over $800 for just THC and Firecontrol controller box.

Thanks very much in advance,
Robbie

2

welcome to the forum…we will do what we can to help.,

first double check your couplers…make sure they are tight.

can you move the Z axis up and down easily with the screen controls?

How can you tell the distance chosen is different from the actual movement.?..the Z axis has no measurements to speak of…only th4e X and Y have scaleable movements.

3

Hello. Actually the coupler was initially found loose sound I did tighten it up but can always check again. I can indeed move the z axis up and down easily with the screen arrows.
I installed a dial indicator and compared that distance to the entered manual distance and z coordinate in the right upper display.

4

The actual dial indicator movement was much less than what the z coordinate displayed.