4 home return – IAI America RCS2-TFA5N User Manual
Page 43

8. Notes on Operation
37
8.4
Home return
8.4.1 Home-return Operation
1) As the motor turns, the rod returns to the negative side (actuator frame side) and contacts the mechanical
stopper.
2) The rod reverses and turns by rotating angle D to find encoder Z-phase.
The distance from the mechanical stopper to the position
where Z-phase is detected is as follows.
Lead
2.5 mm
5 mm, 10 mm
Distance
1.7 mm
2 mm
3) The rod turns by rotating angle E from the position where Z-phase was detected, and the attained offset
position (the offset conforms to an applicable parameter value) is set as the home (points zero).
Z-phase detection sensor (fixed side)
Mechanical stopper
Z-phase
Encoder disk (rotating side)
Rotating angle D
Z-phase detection sensor (fixed side)
The offset from the position where Z-phase is
detected to the home is 1.0 mm.
Rotating angle E
Z-phase detection sensor (fixed side)