Yaskawa AC Drive - A1000 Motion Control Custom - Manual (Page 19)

5 Function Description
YASKAWA TM.A1000SW.117 Motion Control Custom Software Supplement 19
5 Function Description
‹ Types of Motion
„ Linear Absolute Motion
Linear absolute motion would be used in applications such as: ball screws, linear slides, and transfer stations. With this
type of motion, a home switch and a homing sequence or an absolute encoder are required. All position references are
with relation to the actual home position + home offset.
Figure 1
Figure 1 Linear Absolute Motion Example - Ball Screw
„ Rotary Absolute Motion
Rotary absolute motion would be used in application such as: index turntables, turret winders and dial tables. With this
type of motion, a home switch and a homing sequence is required. All position references are with relation to the actual
home position + home offset.
In any Homing routine, the final move to home will only be in the positive direction. If the Homing routine is Positive
(P2-01 = 2, 3, or 5) when the rising edge of the home switch is encountered, the drive will then perform a move to home.
This will cause more forward motion beyond the home switch. If the home offset (P2-06), is set to 0, the machine will
move one complete revolution at the end of the homing routine.
Figure 2
Figure 2 Rotary Absolute Motion Example - Turret Winder
PG-X3
Negative
Overtravel
Switch Home
Switch
Yaskawa
A1000 Drive
Screw
Positive
Overtravel
Switch
Encoder
Motor
Gear
Box
PG-X3
Home
Switch
Yaskawa
A1000 Drive
Gear
Box
Gear
Encoder
Motor
A B
Chain