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TH102MX CNC PLASMA Torch Height Controller
3
COM terminal is a common input terminal connected to the ARC, UP and DOWN
optocoupler contacts inside the device, according to the diagram located on the
cover.
Suggested route is to “GND” at driver/pc end. Do not jumper
this connection to the “7-35V” negative.
OK output is activated when plasma ignition is
detected and after the preset delay countdown. Route and configure for a software
input. Not required to operate.
UP output is activated when the measured voltage is lower than the voltage
setpoints, reduced by half the hysteresis voltage. Route and configure for a
software input.
DOWN output is activated when the measured voltage is higher than the voltage
setpoints, reduced by half the hysteresis voltage. Route and configure for a
software input.
Note: No output signals are activated in case when only the pilot arc is detected
and when the main arc is broken.
Signal outputs should be connected to the CNC system in accordance with the
documentation of the CNC electronic system controlling the machine. For this,
we use inputs of outermost connectors HOME or LIMIT - THC relay contacts
should be connected to the terminals the same way as limit switches connectors.
At the same time, the common COM terminal should be connected to the
CNC system to a common terminal for limit switches (it is usually a GND
terminal).
To reduce the possibility of the short-circuit entering the CNC system, the
connection should be made with a shielded cable - the shielding must be
connected to grounding on the CNC system side. Do not connect the shielding to
the THC controller side.
Start-up and operation:
The device is pre-configured at the factory and after the correct
connections are made, it immediately works properly with most plasma devices.
After switching power on, the THC controller’s display displays the Limit value at
left and three dashes at right side“- - - “ which means it present there is no input
voltage.
In this mode, by pressing the up/down keys, the threshold value can be modified
and thus set the height of the lens above the material.
To specify other parameters, press menu key,the HYS (hysteresis) parameter is
the first. By press the the menu key again, you can navigate through the menu
parameters. In this state, by pressing the up/down keys you can enter the value
of the current parameter. Once the value is set,wait a moment for automatically
store and exit the menu.
