Override Function - Omron C200H-MC221 Operation Manual

Override Function

Pass Mode
5-8 Override Function
Override in PTP Control
44
In the pass mode, the shift to the next operation takes
Speed
place during the interpolation acceleration time, not dur-
ing the interpolation deceleration time.
Ta: Interpolation acceleration time
Td: Interpolation deceleration time
When the pass mode is selected, the time required for movements is reduced
because no interpolation deceleration time is required.
The override function is designed to change the operation speed through multi-
plying the speed that is set in the system parameters or G commands by a de-
sired factor. Setting methods are different depending on whether the PTP con-
trol is used or interpolation is used.
The override in the PTP control can be set to a value between 0.1% and 100.0%.
"100%" means the maximum high-speed feed rate designated by the feed rate
parameter. The override function is used when the maximum high-speed feed
rate is too fast. For example, if the override is set to 50%, the travel speed drops
to half the maximum high-speed feed rate.
Speed
Maximum
high-
speed
feed rate
Designated
speed
Acceleration
time
The acceleration remains constant even if the speed is changed by using the
override function. As a result, both the acceleration time and the deceleration
time are proportionally reduced.
Pass time to the
next target value
Override: 100%
Change in the
override
Override: 50%
Constant
Deceleration
speed time time
Section 5-8
Time
Time