8 Home Position Return and Internal Positions
167 SD780 Series Servo Technical Manual
c.Start the home position return →Home position OFF →Search for the rising edge of home
position at high speed forward direction →Touch the forward limit →Search for the falling edge of
home position at high speed reverse direction →Decelerate to 0 →Search for the rising edge of
home position at low speed forward direction →Stop after searching for the falling edge of home
position at low speed reverse direction.
23-c
H
-L
-H
L
Home position
signal
Limit signal
Home position
signal
Forward
direction
Running route
Limit signal
Motor
Home position return method 23-c
Home position return method 24
a.Start the home position return →Home position signal OFF →Search for the rising edge of
home position at high speed forward direction →Decelerate to 0 →Search for the falling edge of
home position at low speed reverse direction →Stop after searching for the rising edge of home
position at low speed forward direction.
24-a
H
-L
L
Home position
signal
Forward
direction
Running route
Limit signal
Motor
Home position
signal
Limit signal
Home position return method 24-a
