Delta ASD-A2-0121 Series User Manual page 211

Chapter 6 Control Mode of Operation
Electronic gear provides simple ratio change of travel distance. The high electronic gear ratio
would cause the position command to be the stepped command. S-curve or low-pass filter can
be used to improve the situation. When electronic gear ratio is set to 1, the motor will turn one
cycle for every 10000 pulse/rev. When electronic gear ratio is changed to 0.5, then every two
pulses from the command will be referred to one pulse of motor encoder.
For example (rotary motor): after setting the electronic gear ratio properly, the moving distance
of the object is 1 μm/pulse, which is easier to use.
Electronic gear
is unapplied.
Electronic gear
is applied.
6-14
Motor (Encoder resolution: A/B, Z)
Encoder: 2500 pulse/rev
Gear Ratio
1

1
10000

3000
WL: Working Load
WT: Working Table
Moving distance of each pulse command
3 1000 3000

 
4 2500 10000

1  m

Ball Screw
Pitch: 3 mm
 m

ASDA-A2