YASKAWA MP2100 Series User Manual page 201

7 Motion Parameters
7.3.2 Electronic Gear
Parameter No.
Parameter
(Register No.)
Motion Fixed No. 6
Parameters
No. 8
No. 9
7-46
Name
Command Unit
• This parameter shows the load moving amount for each
per Revolution
rotation of the load axis. Sets the load moving amount value
divided by the reference unit.
No.6 =
• Some examples of the load moving amount are shown
below.
Reference Units
per Revolution
P [mm]
360 [
D [mm]
• Setting range: 1 to 2
■ Setting Examples
• Load moving amount per load axis rotation = 12 mm
• Reference unit = 0.001 mm
No.6 =
Gear Ratio
• These parameters are used to set the gear ratio between the
[MOTOR]
motor and the load. When the motor axis has rotated m
times and the mechanical configuration allows the load axis
Gear Ratio
to rotate n times, set the following values:
[LOAD]
No. 8 = m rotations
No. 9 = n rotations
• Setting range: 1 to 65,535 [rotations]
■ Setting Examples
Motor axis
m rotations
Gear ratio =
Therefore, set the following values:
Description
Load travel distance per load axis rotation
Reference unit
Load Configuration Examples
Ball
One rotation
screw
P = Ball screw pitch
Rotat-
° ing
]
table
Belt
One rotation
31
−1 [1 = 1 reference unit]
12 mm
= 12000
0.001 mm
4 rotations
7 rotations
Load axis n rotations
9 rotations
3 rotations
n 3 4
×
= =
m
7 9
No. 8 = 21
No. 9 = 4
Default
Value
10000
°
360
One rotation
π
D
D
1
1
4
21