NCT Group NCT 100T Manual Operation Modes, Manual Reference Point Return Mode, Axis Selection

6.1Manual Reference Point Return Mode

6 Manual Operation Modes

The manual operation modes are as follows:

Manual reference point return

Manual handle feed

Incremental jog

Jog

6.1 Manual Reference Point Return Mode

Reference point can be returned only upon power-on state of the machine, i.e. when there is no EMG (emergency stop) state in the rightmost field (general NC state) of status bar. If one of the axes has not been returned to the reference point, in case of that axis no absolute position- ing (G90) can be programmed. The parametric overtravel also functions only after the reference point return. The reference point return mode is indicated by caption REF in the 2nd field of the status bar.

If the machine is mounted with NCT machine control board the reference point return mode

can be switched on by pressing the button.

Axis Selection

After selecting the operation mode by pressing and holding down the

appropriate axis’s button returning to the reference point on the selected axis is beginning. If the axis direction button is not held down

any longer the movement stops, if it is pressed again the process is

continued. More axes’ jog buttons can be pressed at a time, therefore

return to reference point can be made simultaneously on several axes.

On the

selected axis the direction of movement depends on the parameter and independent of whether key of direction + or key of direction ! is being pressed. Generally on the control panels +X, !X, +Z, !Z are equipped. This way the move- ment on axes X, Z can be directly started.

If the ABSOLUTE POSITION screen is used during reference point return, on the axes, on which return to reference point% has already occurred, symbol is

displayed beside the position, while on the ones, on which no return to reference point

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