8 Home Position Return and Internal Positions
169 SD780 Series Servo Technical Manual
Home position return method 25
a.Start the home position return →Home position signal OFF →Search for the falling edge of
home position at high speed forward direction→Decelerate to 0 →Stop after searching for the
rising edge of home position at low speed reverse direction.
25-a
H
-L
Home position
signal
Forward
direction
Running route
Limit signal
Motor
Home position
signal
Limit signal
Home position return method 25-a
b.Start the home position return →Home position signal ON →Search for the falling edge of home
position at high speed forward direction→Decelerate to 0 →Stop after searching for the rising
edge of home position at low speed reverse direction.
25-b
H
-L
Home position
signal
Forward
direction
Running route
Limit signal
Motor
Home position
signal
Limit signal
Home position return method 25-b
