Mitsubishi Electric MELSEC iQ-R Series User Manual page 54

[Pr.328] Synchronous encoder axis rotation direction restriction
Set this parameter to restrict the input movement amount for the synchronous encoder axis to one direction.
This helps to avoid reverse operation caused by such as machine vibration of synchronous encoder input.
Setting value
0: Without rotation direction
restriction
1: Enable only for current value
increase direction
2: Enable only for current value
decrease direction
The input movement amount in the reverse direction of the enabled direction accumulates as a rotation direction restricted
amount, and it will be reflected when the input movement amount moves in the enabled direction again. Therefore, the
position value of synchronous encoder axis does not deviate when the reverse operation is repeated.
The rotation direction restricted amount is set to 0 at the synchronous encoder axis connection and current value change.
For "1: Enable only for current value increase direction" is set in "[Pr.328] Synchronous encoder axis rotation direction restriction".
Speed before rotation
direction restriction
[Md.322] Synchronous
encoder axis speed
(Speed after rotation
direction restriction)
[Md.324] Synchronous encoder
axis rotation direction
restriction amount
[Pr.329] Resolution of synchronous encoder via CPU
Set the resolution of connected synchronous encoder when "201: Synchronous encoder via CPU" is set in "[Pr.320]
Synchronous encoder axis type".
If 1 or more is set, "[Cd.325] Input value for synchronous encoder via CPU" is processed as the cycle counter within the range
from 0 to (resolution of synchronous encoder via CPU - 1).
If 0 or less is set, "[Cd.325] Input value for synchronous encoder via CPU" is processed as 32 bit counter within the range
from -2147483648 to 2147483647.
If 1 or more is set in "[Pr.329] Resolution of synchronous encoder via CPU", set the cycle counter within the
range from 0 to (resolution of synchronous encoder via CPU - 1) as the input value in "[Cd.325] Input value for
synchronous encoder via CPU".
2 INPUT AXIS MODULE
52
2.2 Synchronous Encoder Axis
Details
Rotation direction restriction is not executed.
Enable only the input movement amount in the increasing direction of the synchronous encoder axis position value.
Enable only the input movement amount in the decreasing direction of the synchronous encoder axis position value.
The input movement amount is accumulated as a rotation
direction restricted amount, and will be reflected when the
input movement amount moves in the enabled direction.
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