
B-65150E/04 2. SETTING α SERIES SERVO PARAMETERS
− 15 −
Reference)
β series servo motor
Servo software
Motor series
model and
motor type number
9
0
4
1
9
0
4
6
9
0
6
0
9
0
6
6
9
0
7
0
9
0
8
0
9
0
8
1
9
0
9
0
9
0
A
0
9
0
6
4
9
0
6
5
β0.5/3000 13 A B M A C A C A A E A
β1/3000 35 A B M A C A C A A E A
β2/3000 36 A B M A C A C A A E A
β3/3000 33 G W B H A C A A F A
β6/2000 34 A B M A C A C A A E A
(5) Set AMR as described below:
α pulse coder 00000000
(6) Set CMR with the scale of a distance the NC instructs the machine
to move.
CMR = Command unit / Detection unit
CMR 1/2 to 48 Setting value = CMR × 2
Usually, CMR = 1, so specify 2.
(7) Specify the flexible feed gear (F⋅FG). This function makes it easy
to specify a detection unit for the leads and gear reduction ratios
of various ball screws by changing the number of position
feedback pulses from the pulse coder or separate detector.
Setting for the α pulse coder in the semi-closed mode
(Note 1) Necessary position feedback pulses
F⋅FG numerator (≤ 32767) per motor revolution
= (as irreducible fraction)
F⋅FG denominator (≤ 32767) 1,000,000 (Note 2)
NOTE
1 For both F⋅FG number and denominator, the maximum
setting value (after reduced) is 32767.
2 α pulse coders assume one million pulses per motor
revolution, irrespective of resolution, for the flexible
feed gear setting.
3 If the calculation of the number of pulses required per
motor revolution involves π, such as when a rack and
pinion are used, assume π to be approximately
355/113.
4 The setting for serial pulse coder A is the same as for
the α pulse coder.