SMC Networks LECSN-T Series User Manual

20 - 68
20．PROFINET COMMUNICATION
(6) Operation example of Manufacturer-specific Homing method
The following shows an operation example of the Manufacturer-specific home return.
(a) Method -1 and -33
1) Dog type home position return
The following figure shows the operation of Homing method -1. The operation direction of Homing
method -33 is opposite to that of Homing method -1.
Home position return speed
Home position
shift distance
Creep speed
td
Proximity dog(Note)
Home position return
position data
Deceleration time
constant
Servo motor speed
Reverse
rotation
0 r/min
Forward
rotation
Statusw ord bit 10
Target reached
ON
OFF
ON
OFF
Statusw ord bit 12
Homing attained
ON
OFF
ON
OFF
Controlw ord bit 4
Homing operation start
ON
OFF
Z-phase
DOG (Proximity dog)
Acceleration time
constant
3 ms or shorter
No
te.
After the front end of the proximity dog is detected, if the distance after proximity dog is traveled without reaching the creep
speed, [AL. 90] occurs. Set the travel distance after proximity dog enough for deceleration from the home position return
speed to the creep speed.
Servo motor speed
Reverse
rotation
0 r/min
Home position
return direction
Home position return start position
After retracting to before proximity dog,
the home position return starts from here.
Proximity dog
When a home position return is started from the proximity dog
Servo motor speed
Reverse
rotation
0 r/min
Forward
rotation
The home position return starts from here.
Home position
return direction
Home position return start position
Proximity dog
Stroke end (Note)
Note.
The software limit cannot be used with these functions.
When the movement is returned at the stroke end

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English