Speed Change Gear Parameters - Mitsubishi Electric MELSEC iQ-R RD78G4 User Manual

Speed change gear parameters

n: Axis No. - 1
Setting item Setting details
[Pr.434] • Set the arrangement for the speed change
Speed change gear gear.
Fetch cycle: At operation start (Synchronous
control)
[Pr.435] • Set the smoothing time constant for the speed
Speed change gear change gear.
smoothing time Fetch cycle: At operation start (Synchronous
constant control)
[Pr.436] • Set the numerator for the speed change ratio.
Speed change ratio: Fetch cycle: Operation cycle
Numerator
[Pr.437] • Set the denominator for the speed change
Speed change ratio: ratio.
Denominator Fetch cycle: Operation cycle
[Pr.434] Speed change gear
Set the arrangement for the speed change gear.
Setting value
0: No speed change gear
1: Main shaft side
2: Auxiliary shaft side
3: After composite auxiliary shaft
gear
[Pr.435] Speed change gear smoothing time constant
Set the averaging time to execute a smoothing process for the speed change for the speed change gear.
The input response is delayed depending on the time set in the speed change gear smoothing time constant.
Speed is changed directly when "0" is set.
[Pr.436] Speed change ratio: Numerator, [Pr.437] Speed change ratio: Denominator
Set the numerator and the denominator for the speed change ratio.
"[Pr.436] Speed change ratio: Numerator" and "[Pr.437] Speed change ratio: Denominator" can be changed during
synchronous control.
Input values for speed change are processed as follows.
Input value after change = Input value before change ×
The input speed can be reversed by setting a negative value in " [Pr.436] Speed change ratio: Numerator".
"[Pr.437] Speed change ratio: Denominator" is set within the range from 1 to 2147483647.
Setting value
■Set in decimal.
0: No speed change gear
1: Main shaft side
2: Auxiliary shaft side
3: After composite auxiliary shaft
gear
■Set in decimal.
0 to 5000[ms]
■Set in decimal.
-2147483648 to 2147483647
■Set in decimal.
1 to 2147483647
Details
Speed change is not processed, and the input value is transmitted as is.
Speed change is processed for input value after main shaft clutch based on the speed change ratio settings.
Speed change is processed for input value after auxiliary shaft clutch based on the speed change ratio settings.
Speed change is processed for input value after composite auxiliary shaft gear based on the speed change ratio
settings.
[Pr.436] Speed change ratio: Numerator
[Pr.437] Speed change ratio: Denominator
Default Buffer memory address
value
Axis 1 to axis 16
0 36460+200n
0 36461+200n
1 36462+200n
36463+200n
1 36464+200n
36465+200n
4 ADVANCED SYNCHRONOUS CONTROL
4.4 Speed Change Gear Module
4
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