6.9 S
OFTWARE
T
RAVEL
L
IMITS
Setting software travel limits will automatically decelerate the axis right before it reaches the limit switch, preventing possible
damage to the machine as shown in Figure 6.9.1.
Prerequisites:
Before starting the machine:
◦
The revs per inch or mm needs to be calibrated correctly, as in section 6.5.
◦
The limit switches need to be functioning, set up in section 6.6.
Restart the machine and home it before continuing.
1. Check that the DRO is displaying machine position:
From any menu, press the
alt
and
D
keys simultaneously until
machine
is displayed in the top left corner of the DRO, shown in Figure 6.9.3.
2.
Put the machine into
Slow jog
and turn the feedrate
down
.
Move the axis away from home toward the limit switch on the opposite end of the axis until the limit switch trips.
The status screen will display message such as “
407 X- limit (#50001) tripped
”.
3.
Put the Jog Panel into
incremental mode
,
x10
. Increment away from the limit switch until the limit switch is cleared.
The status screen will display a message such as “
340 X- limit (#50001) cleared
”.
Jog another
0.1” (2.5mm)
away from the limit switch.
Continue to step 4.
Page 50 of 72
6.9 Software Travel Limits
T:\_Docs working\Oak Board Manual\Oakboard install manual V2 4-10-15.odt
Figure 6.9.1
Machine without software travel limits.
Figure 6.9.2
Machine with software travel limits.
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