YASKAWA MP2000 Series User Manual page 110

( 26 ) Zero Point Return
OW3C
Zero Point Return Method
Set the operation method when the Zero Point Return (ZRET) motion command is executed.
With an incremental encoder, there are 17 different methods that can be performed for the Zero Point Return operation.
 Refer to 7.2.3 Zero Point Return (ZRET) on page 7-15 for information on each method.
Description
With an absolute encoder, the axis is returned to the zero point of the machine coordinate system regardless of which
method is being used.
OW3D
Width of Starting Point Position Output
Set the width in which the Zero Point Position bit (monitoring parameter IW0C, bit4) will be ON.
Description
OL3E
Approach Speed
Set the approach speed for a zero point return operation after the deceleration LS is passed.
 The setting unit for this parameter depends on the Speed Unit Selection (OW03, bits 0 to 3), but the
Description
result of applying the speed unit setting is not shown here.
OL40
Creep Rate
Set the creep speed for a zero point return operation after the ZERO signal is detected.
 The setting unit for this parameter depends on the Speed Unit Selection (OW03, bits 0 to 3), but the
Description
result of applying the speed unit setting is not shown here.
OL42
Zero Point Return Travel Distance
Set the distance from where the signal is detected to the zero point position.
Description
A typical example of a zero point return operation is shown below.
 Refer to 7.2.3 Zero Point Return (ZRET) on page 7-15 for details.
Speed
Width of
Starting
Point
Position
Output
Position
Speed Torque
Position
Speed Torque
Position
Speed Torque
Position
Speed Torque
Position
Speed Torque
Zero Point Return
Travel Distance
(OL 42)
Approach Speed
(OL 3E)
Creep Rate
(OL 40)
5.4 MP2000 Series Machine Controller Parameter Details
5.4.2 Motion Setting Parameter Details
Setting Range Setting Unit
Phase
0 to 19
Setting Range Setting Unit
Phase
0 to 65535 Reference unit
Setting Range Setting Unit
Depends on the
speed unit set in
Phase
Function Setting 1
31 31
−2 to 2 −1
(setting parameter
OW03, bits 0 to
Setting Range Setting Unit
Depends on the
speed unit set in
Phase
Function Setting 1
31 31
−2 to 2 −1
(setting parameter
OW03, bits 0 to
Setting Range Setting Unit
Phase
31 31
Reference unit
−2 −1
to 2
Speed Reference Setting
(OL 10)
Start
DEC signal
Phase-C pulse
Default Value
−
0
Default Value
100
Default Value
1000
3)
Default Value
500
3)
Default Value
0
Position
5-39
5