Panasonic MINAS A5-series Operating Instructions Manual page 87

14. Division Ratio for Parameters
Relation between Electronic Gear and Position Resolution or Traveling Speed
Lead of ball screw, L =10mm
Gear reduction ratio, R = 1
Position resolution,
ΔM =0.005mm
Encoder, 17-bit
(E= 2 P/r)
17
Lead of ball screw, L =20mm
Gear reduction ratio, R = 1
Position resolution,
ΔM =0.0005mm
Encoder, 17-bit
(E= 2 P/r)
17
Encoder : 20-bit (E = 2
20
Lead of ball screw, L =20mm
Gear reduction ratio, R = 1
Position resolution,
ΔM = 0.0005mm
Line driver pulse input,
500kpps
Encoder, 17-bit
Ditto
To make it to 2000r/min.
Related page
• P.4-6 "Details of Parameter"
Electronic gear ratio
0.0005×2 ×1
17
10
0.00005×2 ×1
17
20
P/r)
0.00005×2 ×1
20
20
Motor rotational speed (r/min), N = F ×
1×2
500000 ×
10000
1
= 50 × 60 ×
2
2
Electronic gear ratio
2000×2
17
D = =
500000×60
Travel distance per command pulse (mm)
(Position resolution)
D 1
ΔM = ×
E R
2 1
15
× ×
3750 2
17
ΔM×E×R
D =
L
5×2 655360
17
= =
10×10 100000
4
D < 1, hence
= 0.32768
use 120-bit.
5×2 5242880
20
= =
20×10 2000000
5
D
E
1
15
× ×60
2
17
= 750
N × E
D =
F × 60
2000×2 262144000
17
=
30000000 30000000
× L
1 1 20
× 20 = ×
1 3750 2
2
Pr0.09
D =
Pr0.10
Pr0.09 = 655360
Pr0.10 = 100000
"D = 1" is the
condition for
minimum resolution.
Pr0.09 = 5242880
Pr0.10 = 2000000
× 60
Pr0.09
D =
Pr0.10
Pr0.09 = 262144000
Pr0.10 = 30000000
20
= = 0.00133mm
3750 × 4
1
2
3
4
5
6
7
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