HEIDENHAIN POSITIP 8000 Series Operating Instructions Manual page 119

Information for OEM and Setup users | Commissioning
Software limit switches
Function of the software limit switches
Software limit switches limit the permissible range of traverse of an NC-controlled
axis in the positive or negative direction. If the software limit switches are active, the
axis is slowed down early enough to come to a standstill at the latest when reaching
the software limit switch.
If a program step contains a nominal position that is outside the permissible range
of traverse, the program step is acknowledged with an error message and the axis
is not traversed. If the actual position of the axis is outside the permissible range
of traverse, the axis can only be moved in the direction of the machine datum.
A corresponding message is displayed on the product.
Settings ► Axes ► X, Y ... ► Software limit switches
Parameters
Software limit switches
Limit switch in positive direction
Limit switch in negative
direction
4.6.8 Configuring general settings for Axis + NC
When you have configured the specific settings on every axis + NC, you can make
the general settings for the closed-loop axes. Depending on the setup of your
machine, you do not have to make all of the settings.
The flowchart below shows the configuration of the general settings:
General settings for
NC axes
Switching functions
Overrides
Special settings
Virtual axis keys
HEIDENHAIN | POSITIP 8000 | Operating Instructions Turning | 03/2022
Explanation
Use of the software limit switch
Settings: ON or OFF
Default value: OFF
Distance in the positive direction from the machine datum to the
software limit switch (including Reference point displacement, if
activated)
Unit: millimeters
Default value: 0
Distance in the negative direction from the machine datum to the
software limit switch (including Reference point displacement, if
activated)
Unit: millimeters
Default value: 0
Inputs and outputs for switching functions
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