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Mitsubishi Electric QD77MS User Manual Page 53

Simple motion module.
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[Pr.300] Servo input axis type
Set the current value type to be generated of the input value for the servo input axis.
0: Invalid .................................... Servo input axis is invalid.
1: Feed current value ............... Generate the input value based on "[Md.20] Feed current
2: Real current value ................ Generate the input value based on the real current value,
3: Servo command value ......... Generate the input value based on the command pulse
4: Feedback value .................... Generate the input value based on the encoder feedback
Simple Motion module
1: Feed current value
2: Real current value
[Pr.301] Servo input axis smoothing time constant
Set the averaging time to execute a smoothing process for the input travel value from the
servo input axis.
The smoothing process can moderate speed fluctuation, when the "Real current value" or
"Feedback value" is used as input values.
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.301
value".
which is converted into units of the encoder feedback
pulses from the servo amplifier.
for the servo amplifier (a value that the feed current
value is converted into encoder pulse units).
pulse from the servo amplifier.
Unit Pulse conversion
(Backlash compensation)
Pulse
Unit conversion
Averaging by
smoothing time constant
Servo input axis
smoothing time constant
2 - 5
Chapter 2 Input Axis Module
3: Servo command value
4: Feedback value
Pr.301
Servo input axis
smoothing time constant
Servo
amplifier
t
t

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