Mitsubishi Electric Q173DSCPU Programming Manual page 116

5 INPUT AXIS MODULE
(5) [Pr.325] Synchronous encoder axis smoothing time constant
Set the averaging time to execute a smoothing process for the input travel value
from synchronous encoder.
The smoothing process can moderate speed fluctuation of the synchronous
encoder input.
The input response is delayed depending on the time corresponding to the
setting by smoothing process setting.
Input value speed
before smoothing
Input value speed
after smoothing
[Pr.325] Synchonous encoder axis
smoothing time constant
(6) [Pr.326] Synchronous encoder axis phase compensation advance
time (D14820+10n, D14821+10n)
Set the time to advance or delay the phase (input response) of the synchronous
encoder axis.
Refer to Section 8.1 "Phase compensation function" for the peculiar time delay of
the system using the synchronous encoder axis.
• 1 to 2147483647 [μs] ..........Advance the phase (input response) according to
• 0 [μs]....................................Do not execute phase compensation.
• -2147483648 to -1 [μs]........Delay the phase (input response) according to the
If the setting time is too long, the system experiences overshoot or undershoot at
acceleration/deceleration of the input speed. In this case, set a longer time to
affect the phase compensation amount in [Pr.327] Synchronous encoder axis
phase compensation time constant.
Averaging by smoothing time constant
the setting time.
setting time.
5 - 37
t
t
[Pr.325] Synchonous encoder axis
smoothing time constant