Omron R88D-KN01L-ECT-L User Manual page 465

Precautions for Correct Use Precautions for Correct Use
• If an origin signal exists near the point where the Origin Proximity Input turns ON or OFF, the
first origin signal after the Origin Proximity Input is turned ON or OFF may not be detected.
Set the Origin Proximity Input so that the origin signal occurs away from the point where the
Origin Proximity Input turns ON or OFF.
• During the homing operation, the stop function for the Stop Selection for Drive Prohibition
Input is disabled.
• When the Drive Prohibition Input Selection (3504 hex) is set to 0, a Drive Prohibition Input
Error 1 (Error No. 38.0) will occur if the drive prohibition input is detected on both sides.
• When the Drive Prohibition Input Selection (3504 hex) is set to 1, a homing error (Home error)
1 will occur when the drive prohibition input is detected on both sides.
If this Homing method is used without using the drive prohibition input, do not assign the drive
prohibition input to a general-purpose input.
For details on assigning the general-purpose input signals, refer to 7-1 Sequence I/O Signals
on page 7-2.
• When the Drive Prohibition Input Selection (3504 hex) is set to 2, a Drive Prohibition Input
Error 1 (Error No. 38.0) will occur if the drive prohibition input is detected on one side.
When using this Homing method, set the Drive Prohibition Input Selection (3504 hex) to a
value other than 2.
Homing Methods 19 and 20: Homing without an Origin Signal
In these homing methods, only the Origin Proximity Input is used. Homing method 19 stops when
the Origin Proximity Input turns OFF, and Homing method 20 stops when the Origin Proximity Input
turns ON.
The operation start direction of the homing operation is the positive direction for an OFF Origin
Proximity Input, and the negative direction for an ON Origin Proximity Input.
Origin Proximity Input
A homing error (Home error) 1 will occur in the following cases.
• When the drive prohibition inputs on both sides are ON at the same time.
• When an ON or OFF Origin Proximity Input is not detected before the drive prohibition input in
the drive direction turns ON.
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
a
19
b
19
20
c
20
d
e
Negative direction Positive direction
Appendices
A
A - 19