
B-63322EN/03 NC FUNCTIONS 21.MANUAL OPERATION
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21.5 MANUAL FEED IN A SPECIFIED DIRECTION
The tool can be manually moved in a specified direction on a specified
plane. The feedrate and the direction and plane of feed can be changed
at any time. Simple cutting can be manually executed on a plane.
- Selecting a plane
Specify external signals that indicate the first and second axes of the
plane on which the tool is manually moved in a specified direction.
- Specifying the direction of feed
Enter an external input signal that indicates the direction in which the
tool is to be manually moved. The direction of feed can be specified in
the range of 0 to 360 degrees in 1/16 degrees. The angle is specified as
shown below.
If an angle greater than 360 degrees is specified, the CNC unit
repeatedly subtracts 360 from the angle until it falls within the range of
0 to 360 degrees.
While the tool is being manually moved in the specified direction, the
direction of feed can be changed as required. When the direction is
changed, the position check is not executed, but the move command in
the new direction is immediately executed.
(Positive direction of the second axis)
(Positive direction of the first axis)
90
°
0
°
270
°
180
°
- Specifying a feedrate
Using the dial for specifying the jog feedrate, specify the feedrate (as a
tangential velocity) at which the tool is manually moved in the
specified direction.
Parameter No. 1411 determines the feedrate when the dial is set to the
100% position.
- Starting and stopping manual feed in the specified direction
Manual feed in the specified direction is executed while the
corresponding signals are “1”.
The signal that moves the tool in the specified direction and the signal
that moves it in the opposite direction are used in manual feed.