Specialized Concentrated Focused
「
66
」
Machine Tool Debugging
Bearing
Axle
Worktable or Tool Rest
Screw
Servo Motor
Encoder
Coupling reduction
ratio 1:1
Ball Screw
Fig. 5-7 Servo motor sharing the same axle with lead screw (without reduction gearbox)
Servo motor and lead screw are sharing the same axle (without reduction gearbox), and one revolution
of motor will lead to one rotation of lead screw.
Pn203
Pn202
6000
8192
1
1
6000
4
2048
A
B
Ratio
Gear
Electronic
(Note: for YASKAWA servo,
―4‖ should be multiplied by the numerator.)
Table 1 Parameters setting value
Parameters
PN202
PN203
Setting Value
8192
6000
Sample Two
Command unit: 0.1°
Deceleration ratio
3:1
Bearing axle
13-bit incremental encoder
Round Table
Fig. 5-8 Sample of round table
Pulses generated per revolution of motor=2
13
/2
2
=2048
Angle of rotation per revolution=360°
Command unit=0.1°
Amount of movement per revolution of bearing axle= 360°/ 0.1°=3600
Pn203
Pn202
1
3
3600
4
2048
A
B
Ratio
Gear
Electronic
Table 2 Parameters setting value
Parameters
PN202
PN203
Setting Value
24576
3600