Soft Limits Setup - MachMotion Apollo III Manual

3. If any of the axes homed in the wrong direction, click on the red X next to the axis on the Home Neg
column.
4. Set the speed of the axis by changing the percentage under the Speed % column. Press [OK] to close the
Motor Home/Soft Limits window.
Homing on the machine should now be completely set up. Press the [Home All] button again to make sure that
everything works correctly.

4.2 Soft Limits Setup

Soft limits are utilized to keep the machine from crashing. If the soft limits are set up correctly, the machine will
never be able to hit a physical limit switch unless it is not homed properly. If at any time a command is made for
the machine to move outside of the soft limits (while they are enabled), an error will appear in the status line or a
window will pop up asking if the program should continue. To set up the soft limits, follow the procedure outlined
below.
1. Jog the machine to the maximum distance from the homing switches.
Note: Make sure to stay inside the physical limit switches. If the machine is jogged outside of the limit
2. Record the machine coordinates at the end of the travel.
3. Open the menu bar and click Config->Homing/Limits to bring up the Motor Home/Soft Limits window
will come up (See Figure 26).
4. For each axis enter in the recorded values.
Note: If the value is positive, place it into the Soft Max limit and set the Soft Min limit to zero. Otherwise,
with a negative value, set the Soft Max to zero and the Soft Min to the recorded value.
5. Press [OK].
FIGURE 26 MOTOR HOME/SOFT LIMITS
switches, it completely defeats the purpose of soft limits.
Apollo III Using Mach3
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