179
CW and CCW Limit Switches These switches indicate that the workpiece’s maximum range has been reached
when the motor rotates clockwise (CW) or counterclockwise (CCW).
Origin Proximity Switch This switch indicates that the axis is near the origin.
Encoder’s Z-phase Signal This signal is output when the encoder has rotated one revolution. The first
Z-phase position after the origin proximity switch input changes from ON to OFF
is the actual origin.
7-3 Origin Search Parameters
Seven parameters are used in the origin search operation. These parameters
are set with the MC Support Software.
Origin Search Method
Origin Search Direction
Origin Deceleration Method
Origin Proximity Logic
Origin Search High-speed Feedrate
Origin Search Low-speed Feedrate
Reference Origin Offset
The reference origin offset value is valid only in the origin search operation. The
value is not valid for the axes using the absolute encoder.
Origin Search Method There are three possible settings for the Origin Search Method.
Set Origin at Power ON Mode
The origin is automatically set to the motor’s position when power is turned ON.
Reverse Mode
The direction is reversed if a limit switch input is received during the origin
search. The origin will be fixed when the Z-phase signal goes ON after the origin
proximity switch goes from ON to OFF (normally open input).
When there isn’t an origin proximity switch, a limit switch can be used instead.
1 Direction Mode
The origin search is performed in just one direction. An error will occur if a limit
switch input is received before the origin proximity switch input.
When there isn’t an origin proximity switch, a limit switch can be used instead.
Setting the Parameters Refer to the MC Support Software Operation Manual for details on setting these
parameters. The Origin Search Method, Origin Search Direction, Origin Decel-
eration Method, and Origin Proximity Logic parameters are in the Machine
Parameters Edit menu. The Origin Search High-speed Feedrate and Origin
Search Low-speed Feedrate parameters are in the Feedrate Parameters Edit
menu. The Reference Origin Offset parameter is in the Coordinate Parameters
Edit menu.
Origin Search Parameters
Section 7-3
To Next Page
Loading...
Need help?
General
