NCT Group NCT 990T, NCT 100T, NCT 2000T manual Incremental Jog Mode, Increment Selection

6.3Incremental Jog Mode

6.3 Incremental Jog Mode

Incremental jogging can only be done 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. After selecting the operation mode in the 2nd field of status bar caption INCR appears.

If the machine is mounted with NCT machine control board the incremental jog mode can be

switched on by pressing the

button.

Increment Selection

After selecting the operation mode an increment size must be selected. This can be done on the OPERATOR’S PANEL or POSITION screen. After pressing the F3 action menu key INCREMENT, the desired increment size can be selected with the help of softkeys. The selected increment size can be seen in the 5th (interpolator) field of status bar. The increment size means the number of increments the selected axis moves by pressing the axis direction button once.

If the machine is mounted with NCT machine control board the increment size can also be

selected directly by buttons , , , .

The increment size stepped by the control (1, 10, 100, 1000 increments) is always interpreted in the output system of the machine (metric or inch). The output increment system is deter- mined by the measuring system adapted to the machine. If, for example, in case of a machine of metric system (the output increment system is metric), the resolution is 0.001mm, the control is set to G20 (inch input programming) state and 1000 increment size is selected, on the position display of distance to go 0.0394 will be displayed as distance, which is 1 mm increment size in inch.

If data input and position display is done in diameter on axis X, the selected incremental step will be done in diameter too.

Axis Selection

After setting the increment size by pressing axis jog buttons the step is started on the selected axis and in the selected direction.

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