G32: Traverse - Omron CS1W-MC221 - 02-2008 Operation Manual

G-language Commands

7-3-15 G32: TRAVERSE

Format
412
Note When positioning using interrupt feeding, positions that are determined after
external sensors are enabled will vary depending on various conditions, such
as the ambient temperature. This variation occurs due to detection delays by
external sensors and the general input circuitry of the MC Unit.
The following illustration shows the MC Unit detection delay, and the resulting
variation, assuming that there is no detection delay due to external sensors.
External sensor
General input
• The external sensor changes from disabled to enabled.
• The status of this external sensor is taken as the general input. There is a
maximum delay of 1 ms in this general input circuit, so the MC Unit starts
positioning control at no more than 1 ms after the external sensor is
enabled.
• Accordingly, the actual position to be determined by the MC Unit after the
external sensor is enabled can be obtained according to the following for-
mula.
Actual travel distance [pulse] =
Specified travel distance [pulse] + Feed rate [pps] x Detection delay [s]
• Actual travel distance refers to the distance from the point where the
external sensor is enabled to the point where the machine actually
stops moving.
• Specified travel distance refers to the distance specified by G31.
• Feed rate refers to the rate specified by G31.
• The detection delay is 0.001 (s) max.
This command is provided for traverse, winding machine operations and it can
be used in either Pass Mode or In-position Check OFF Mode.
G32_<Axis movement command>_<Speed reference>
[_M<M code>[/Stopover (Note 1)]]
[_D<D code>[/Stopover (Note 1)]]
[_O<Trailing end specification>](Note 2)
_L<Number of layers>
Note 1. The stopover function can be used with either an M code or a D code, but
not with both.
2. When winding at the end, specify the number of layers. Winding will not be
performed at the end if the number of layers is not specified.
Disabled Enabled
T
T: Detection delay (1 ms max.)
OFF
ON
Speed Position
control control
Timing for starting actual positioning by the MC Unit.
Section 7-3