Ptp Control - Omron C200H-MC221 Operation Manual

PTP Control

5-2 PTP Control
Acceleration Time and
Deceleration Time
Positioning each axis independently from the rest of the axes is called PTP con-
trol. Each axis moves at the preset seeds: at the acceleration speed for the pre-
set acceleration time, the maximum high-speed feed rate, and the deceleration
speed for the preset deceleration time.
For example, suppose a control program is executed to move from the origin to
the X-axis coordinate of 100 and Y-axis coordinate of 50. If the speed for the ac-
celeration time is the same as that for the deceleration time, X-axis and Y-axis
movements will be as illustrated below.
The illustration shows movements when the high-speed feed
rate for the X axis is set to the same feed rate as the Y axis.
Both the X axis and Y axis move to a coordinate of 50 over the same duration of
time. At this point, the Y axis stops and the X axis moves to a coordinate of 100.
Jogging in the manual mode is also controlled by the PTP control. When jogging
is controlled by the PTP control, the speed will be the maximum jogging speed.
Acceleration and deceleration times under the PTP control are as follows:
Acceleration time: Time required until the single axis speed reaches the maxi-
Deceleration time: Time required until the speed control voltage drops to zero
Speed
Maximum high-
speed feed rate
The acceleration time and deceleration time varies depending on the override
values. (Acceleration speed is constant.)
Note Refer to 5-8 Override Function for information on the override.
mum high-speed feed rate
from the maximum high-speed feed rate of the single axis.
Constant
Acceleration
time speed time
Section 5-2
Time
Deceleration
time
37