Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 76

[Pr.328] Synchronous encoder axis rotation direction restriction
Set this parameter to restrict the input travel value for the synchronous encoder axis to one direction. This helps to avoid
reverse operation caused by machine vibration, etc. when "Real current value" or "Feedback value" is used as input values.
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 travel value in the opposite direction of the enable direction accumulates as a rotation direction restricted amount,
and it will be reflected when the input travel value moves in the enabled direction again. Therefore, the current 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
(R: D38564+32n, D38565+32n/
Q: D13244+10n, D13245+10n)
(Speed after rotation direction restriction)
[Md.323] Synchronous encoder axis
rotation direction restriction amount
(R: D38568+32n, D38569+32n/
Q: D13248+20n, D13249+20n)
[Pr.329] Resolution of synchronous encoder via device
Set the resolution of connected synchronous encoder when "201: Via device" is set in "[Pr.320] Synchronous encoder axis
type".
If 1 or more is set, "[Cd.325] Input value for synchronous encoder via device (R: D42326+16n, D42327+16n/Q: D14826+10n,
D14827+10n)" is processed as the cycle counter within the range from 0 to (resolution of synchronous encoder via device-1).
If 0 is set, "[Cd.325] Input value for synchronous encoder via device (R: D42326+16n, D42327+16n/Q: D14826+10n,
D14827+10n)" is processed as 32 bit counter within the range from -2147483648 to 2147483647.
When 1 or more is set to "[Pr.329] Resolution of synchronous encoder via device", set the cycle counter within
the range from "0 to (resolution of synchronous encoder via device-1)" to "[Cd.325] Input value for
synchronous encoder via device (R: D42326+16n, D42327+16n/Q: D14826+10n, D14827+10n)" as the input
value.
[Pr.331] I/O number
Set the I/O number of the module that is assigned to the high-speed counter module when "1: Via module" is set in "[Pr.320]
Synchronous encoder axis type".
Set a value within the range from "H0000 to H0FF0" in multiples of 16.
[Pr.332] Channel number
Set the channel number of the module that is assigned to the high-speed counter module when "1: Via module" is set in
"[Pr.320] Synchronous encoder axis type".
Set the channel number (CH.A is "1", CH.B is "2") of the encoder signal input connector (CN1/CN2) to which the encoder is
connected when "601: Via sensing module" is set in "[Pr.320] Synchronous encoder axis type".
Set a value within the range from "1 to 2".
4 INPUT AXIS MODULE
74
4.3 Synchronous Encoder Axis
Description
Rotation direction restriction is not executed.
Enable only the input travel value in the increasing direction of the synchronous encoder axis current value.
Enable only the input travel value in the decreasing direction of the synchronous encoder axis current value.
The input travel value is accumulated as a rotation direction restricted amount,
and will be reflected when the input travel value moves in the enable direction.
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