JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS23x, 34x, 43x 89
5.6 Position Limits
5.6.1 Position limitation features.
The MIS motor family offers 2 different methods of limiting the movement of the motor.
In some applications it may be fatal or critical if the position of the motor passes a certain
mechanical position range.
The 2 methods are as follows:
• End of Travel Limit Inputs.
Limit switch inputs for detecting the physical position of the mechanics.
• Software Position Limits.
Limits in software to prevent the motor to move outside a certain position range.
The next pages describe the function and how to use these 2 methods.
5.6.2 End-of Travel Limit Inputs
Any of the 8 general inputs (IO1 to IO8) can be used as limit inputs. The input can be set
from MacTalk or via register
NL_Mask, page 141 or PL_Mask, page 142.
Positive limit (PL)
Activation of the Positive limit (PL) Input will halt motor operation if the motor is moving
in a positive direction. The motor can however operate in a negative direction even if the
PL Input is activated.
Negative limit (NL)
Activation of the Negative limit (NL) Input will halt motor operation if the motor is mov-
ing in a negative direction. The motor can however operate in a positive direction even
if the NL Input is activated.
Below is shown how to select the desired input(s) to be used for the limit switch(es).
Notice that the inputs default are set to disabled. Its also possible to select only one input
for one of the directions and keeping the opposite input disabled.
Please use the general chapter I/O Setup tab, page 62 for setting up the active level, op-
tional input filter etc.
How to select the input(s) for the End of Travel Limit
Select the ne
ative and/or positive limit input
s
in these fields.
TT2471-01GB
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