2 CONTROL MODE
2.1 Control mode [G] [WG]
47
2
CiA 402-type Homing method
The following shows the CiA 402-type homing.
■
Method 1: Homing on negative limit switch and index pulse
This homing method uses the stroke end as reference and sets the Z-phase right after the stroke end as a home position.
After the reverse rotation stroke end is detected, the position is shifted away from the stroke end at creep speed in the forward
rotation direction. Then, the position specified by the first Z-phase signal or the position of the first Z-phase signal shifted by
the home position shift distance is used as the home position.
Note that if the position is shifted in the forward rotation direction, and the forward rotation stroke end is detected before the Z-
phase signal is detected, [AL. 090 Homing incomplete warning] will occur.
■
Method 2: Homing on positive limit switch and index pulse
This homing method uses the stroke end as reference and sets the Z-phase right after the stroke end as a home position.
After the forward rotation stroke end is detected, the position is shifted away from the stroke end at creep speed in the reverse
rotation direction. Then, the position specified by the first Z-phase signal or the position of the first Z-phase signal shifted by
the home position shift distance is used as the home position.
Note that if the position is shifted in the reverse rotation direction, and the reverse rotation stroke end is detected before the Z-
phase signal is detected, [AL. 090 Homing incomplete warning] will occur.
1
Index Pulse
Negative Limit Switch
2
Index Pulse
Positive Limit Switch