Electric Gear - Parker P Series User Manual

6.4 Electric Gear

This function allows the user to rotate the motor by the minimum unit that the user wants to
command (User Unit).
Using the drive's electronic gear function prohibits maximizing the use of the encoder's resolution.
Therefore, if the host device has an electronic gear function, we recommend using the host device.
Please set the gear ratio between 1000~1/1000.
Electronic gears are generally used for the following purposes.

When driving loads based on the user unit.
-
You can give command based on the user unit, regardless of the encoder (motor) type.
The table below shows comparison between 5000ppr encoder and 19bit encoder, when
moving 12mm using the same 10mm-pitch ball screw.
Without
electronic gear
When giving command based on the minimum unit (user unit) of 1um(0.001mm)
Parker Hannifin
(A) 5000ppr Encoder
5000*12/10 = 6000
Different commands should be given to each encoder (motor) when
moving the same distance
P series EtherCAT Drive User Guide
(B) 19bit (524288 ppr)
Encoder
524288*12/10=629145.6
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