8 Home Position Return and Internal Positions
168 SD780 Series Servo Technical Manual
b.Start the home position return →Home position signal ON →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-b
-L
L
Home position
signal
Forward
direction
Running route
Limit signal
Motor
Home position
signal
Limit signal
Home position return method 24-b
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 →Stop after searching for the
rising edge of home position at low speed forward direction.
24-c
H
-H
L
Home position
signal
Forward
direction
Running route
Limit signal
Motor
Home position
signal
Limit signal
Home position return method 24-c
