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FLEXCUT™ 125
Making a Cut
Setting up a Cut
Use the following procedure to make a cut with the
FLEXCUT™ 125.
1. Using the charts, determine the proper torch parts and cutting
conditions for the material being cut.
2. Install the proper consumables into the torch.
3. Turn the power switch to the ON position to apply power to the
FLEXCUT™ 125. The LCD will turn on and display the FLEXCUT™
initialization screen.
4. Press the home button and choose the desired operating mode.
5. Turn the control knob to set the desired output current.
6. Press and hold the gas purge button while adjusting the regulator
to recommended output pressure (center of green range).
7. The cutting operation is initiated after a start signal is received. The
arc should establish approximately 2 seconds after application of
the start command. The cutting operation is terminated when the
start signal is removed. At the completion of a cut, gas flow
through the torch will continue for approximately 20 seconds. The
LCD will display the actual output current and gas pressure while
the cut is active.
Machine Interface
The FLEXCUT™ 125 comes standard with a machine interface.
Interface signals provided include: Arc Start, Arc Initiated,
Arc Voltage (raw or divided) and Force Mark. These signals are
accessible through the 14 pin connector on the case back. (See
Figure B.7
Arc Start:
The Arc Start circuit allows for triggering of the power source to
commence cutting. This circuit can be accessed through pins K and
M of the 14 pin connector. The circuit has a 15 VDC nominal open
circuit voltage and requires a dry contact closure to activate.
Arc Initiated:
The Arc Initiated circuit provides information as to when a cutting arc
has transferred to the work piece. This circuit can be accessed
through pins I and J of the 14 pin connector. The circuit provides a
dry contact closure when the arc has transferred. Input to this circuit
should be limited to 0.3 A for either 120VAC or 30VDC.
Arc Voltage:
The Arc Voltage circuit can be used for activating a torch height
control. This circuit can be accessed through pins D and G of the 14
pin connector. The circuit provides full electrode to work arc voltage
(300VDC maximum). A divided arc voltage of 20:1, 30:1, 40:1 or 50:1
is available. See "Accessing Divided Arc Voltage."
Force Mark:
The Force Mark circuit can be used to change between a cut or grid
operating mode and a marking mode quickly and while output is on.
This circuit can be accessed though pins A and B of the 14-pin
connector. This circuit requires a dry contact closure to operate and
both modes should be configured prior to cutting.
Users wishing to utilize the Machine Interface can order a K867
Universal Adapter (please adhere to the pin locations stated above) or
manufacture a 14 pin connector cable assembly.
FIGURE B.7
B-6
OPERATION
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