User`s manual
5 Parameter Setting and Functions
5.4.2 Moving Mode and Coordinate Settings
5-16
5.4.2 Moving Mode and Coordinate Settings
Use the following parameters to set the moving mode and coordinates.
(1) When the Coordinates are the Linear Type
When using the linear type coordinates such as with a ball screw, set PnB20 to 0 and set the forward software
limit (P-LS) in PnB21and the reverse software limit (N-LS) in PnB23.
An error will occur if the positioning target position exceeds one of the software limits. An error will also
occur if +/−INFINITE is set for the target position (POS) in the program table.
If the workpiece reaches a software limit during the JOG command or JOG speed table operation, the motor
will stop at the deceleration set in PnB2B.
If both PnB21 and PnB23 are set to 0, the software limit function will be disabled.
The software limit function is enabled after completion of homing. If, however, PnB31 is set to 0 (no homing),
the software limit function will be enabled when the control power supply is turned ON. The software limit
function will also be enabled as soon as the ZSET serial command is executed.
Parameter Meaning When Enabled
PnB20
0
[Factory setting]
Sets coordinates to linear type.
After restart
1 Sets coordinates to rotary type. Moving mode is set as shortest path.
2
Sets coordinates to rotary type. Moving mode is set as always for-
ward.
3
Sets coordinates to rotary type. Moving mode is set as always
reverse.
PnB21
Linear Type (PnB20 = 0): Forward Software Limit (P-LS)
Rotary Type (PnB20 ≠ 0): End Point of Rotational Coordinates
Setting Range Setting Unit Factory Setting When Enabled
-99999999 to 99999999 Reference unit 99999999 After restart
PnB23
Linear Type (PnB20 = 0): Reverse Software Limit (N-LS)
Rotary Type (PnB20 ≠ 0): Starting Point of the Rotational Coordinates
Setting Range Setting Unit Factory Setting When Enabled
-99999999 to 99999999 Reference unit -99999999 After restart
PnB25
Origin (Incremental Encoder)
Absolute Encoder Offset (Absolute Encoder)
Setting Range Setting Unit Factory Setting When Enabled
-99999999 to 99999999 Reference unit 0 After restart
Forward Software Limit
(P-LS): PnB21
Reverse Software Limit
(N-LS): PnB23
Workpiece