Unidirectional Output Cam - Siemens SIMOTION Function Manual

Output cam length
The output cam length is dependent on the velocity at which the assigned axis traverses during
ON duration of the output cam.
Direction-dependent switching
The output cam is switched on:
● At the starting position if the traversing direction is the same as the effective direction
The output cam is switched off:
● When the assigned time period expires
● When commands are issued that deactivate the output cam, e.g. _disableOutputCam,
A change of direction will not lead to the output cam being switched off if the time-based cam
has already been activated.
3.2.1.5

Unidirectional output cam

Figure 3-6
Limits imposed by starting position
The output cam is switched on:
● At the starting position if the axis is moving in the programmed effective direction
The output cam is switched off:
● By the _disableOutputCam, _setOutputCamState and _reset commands
Output Cams and Measuring Inputs
Function Manual, 04/2014
_setOutputCamState and _resetOutputCam
Unidirectional output cam
Note
The unidirectional output cam does not switch unless the starting position is explicitly
crossed, e.g. by setting the actual value.
An end position is not defined for the unidirectional output cam. The output cam signal
depends solely on the switching criteria when the output cam is crossed over. The
unidirectional cam can be reset via the program (e.g. by calling up the system function
_enableOutputCam again).
Output Cam TO - Part I
3.2 Output cam TO basics
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