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5. PARAMETERS
(2) Setting for use of AD75P
The AD75P also has the following electronic gear parameters. Normally, the servo amplifier side
electronic gear must also be set due to the restriction on the command pulse frequency (differential
500kpps, open collector 200kpps).
AP: Number of pulses per motor revolution
AL: Moving distance per motor revolution
AM: Unit scale factor
Command
value
Control
unit
AP
AM
AL
CMX
CDV
Deviation
counter
+
-
Electronic gear
Feedback pulse
Command
pulse
Servo amplifier
AP75P
Servo motor
Electronic gear
Electronic gear setting example for use of AD75P
Rated Servo Motor Speed
3000r/min
Input system
Open collector
Differential line driver
Max. input pulse frequency
200kpps
500kpps
Feedback pulse/revolution
8192pulse/rev
Servo amplifier
Electronic gear (CMX/CDV)
125/256
1/1
Command pulse frequency (Note 1)
200kpps
409.6kpps
Number of pulses per servo motor revolution as viewed from AD75P 4000pulse/rev
8192pulse/rev
AP
1
1(Note 2)
AL
1
1(Note 2)
Minimum command unit
1pulse
AM
1
1(Note 2)
AP
4000
8192
AL
1000
1000
AD75P
Electronic gear
Minimum command unit
0.1
µ
m(Note 3)
AM
100
100
Note: 1. Command pulse frequency at rated speed
2. Assuming that AP=8192 and AL=8000, the command unit amount per motor revolution is 8000 pulses/rev, which
makes positioning data setting easier.
3. In the case where the ballscrew lead is 10mm.
