MASSO
MASSO Documentation
17.5. How THC works
WARNING Please treat your Plasma with care as the incorrect wiring of the THC or use of the
Plasma may cause damage to MASSO or serious personal injury.
CAUTION: This document provides an overview of how THC works with MASSO, how to connect
and how to test. Depending on what THC you are using you may need to wire it differently from the
drawings shown below. Please consult your user manual.
Overview of the THC interface and Gcode
Under Torch Height Control on the MASSO F1 Screen select option 3 Proma Compact THC Controller 150
The MASSO THC interface uses 3 inputs and 1 output.
Inputs
Arc ok – This signals MASSO when the Plasma arc is struck to let it know that it is ready to continue
with the cut.
THC1 – Lets MASSO know that the torch is too low and needs to rise. Connects to the Up signal in
the THC
THC2 – Lets MASSO know that the torch is too high and needs to descend. Connects to the Down
signal in the THC
Outputs
A MASSO output is set as Plasma On/Off Signal and is used to turn the Plasma torch on and off as needed.
Gcode commands used with THC
M667 - This command is used to switched On the THC automatic Z axis control function.
You can also specify a feedrate which sets the speed at which the Z axis moves while under THC control.
v5.18 - 08 Apr,2021
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