Mitsubishi Electric MELSERVO-J3 Series Instruction Manual page 92

4. OPERATION AND FUNCTIONS
(1) When using a linear encoder (unit setting: mm)
User
Command
[mm]
Position feedback
[mm]
Speed feedback
[r/min]
Calculate the number of pulses (AP) and movement amount (AL) of the linear encoder per ball screw
revolution in the following conditions.
Ball screw lead: 20mm
Linear encoder resolution: 0.05 m
Number of linear encoder pulses (AP) per ball screw revolution
= Ball screw lead/linear encoder resolution=20mm/0.05 m=400000pulse
Number of pulses per revolution [pulse] (AP)
Movement amount per revolution [ ] (AL)
(2) When using a rotary encoder (unit setting: deg)
User
Command
[deg]
Position feedback
[deg]
Speed feedback
[r/min]
Calculate the number of pulses (AP) and movement amount (AL) of the rotary encoder per servo motor
revolution in the following conditions.
Resolution of rotary encoder = Load side resolution: 20000pulse/rev
Number of pulses per revolution [pulse] (AP)
Movement amount per revolution [deg] (AL)
Load side resolution unit
Controller
AP
AL
AL
AP
Load side resolution unit
Load side resolution unit
Controller Servo amplifier
AP
AL
AL
AP
Electronic
Differential
Load side resolution unit
Servo amplifier
Electronic
gear
Differential
Motor speed
400000pulse
20mm
Servo motor
gear
Motor speed
20000pulse
360deg
4 - 13
Servo motor Linear encoder
400000
20000
Rotary encoder
20000
360