AQTRONIC SF53 Operation Manual - Page 3

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SF53

CNC PLASMA Torch Height Controller

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.

OK output is activated when plasma ignition is detected and after the end of the

preset delay.Route and configure for a software input. Not required to operate.

UP output is activated when the measured voltage is lower than the Limit

voltage setpoint, reduced by entire the hysteresis voltage. Route and

configure for a software input.

DOWN output is activated when the measured voltage is higher than the Limit

voltage setpoint, reduced by entire 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 control outputs

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 termi-

nal).

To reduce the possibility of the short-circuit entering the CNC system, the con-

nection 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 shows an "animated"

"Aqtronic"message, and then show Limit value is presented for 1 second.

When the device is ready for operation it displays "- - - " which means it is

presentthere 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, hold both keys at the same time until you see the

HYS (hysteresis) parameter on the display. When you release the keys, 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 and change it by pressing

the up/down keys. Once the value is set, you can store the value by holding both

keys at the same time until you see the value flashing.

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