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6-12 General functions <strong>New</strong> <strong>Functions</strong> <strong>19VRS</strong><br />
6.6 Travel range limits<br />
Machine data<br />
• The safety-related axis speed can be programmed for all axes of a<br />
process within an NC block by means of MTD_commands.<br />
• The PLC can switch the monitoring of the safety-related axis speed on<br />
and off by means of the axis-specific control signal ‘AxxC.SPEED’.<br />
• The user can recognize the effectiveness of the safety-related axis<br />
speed in the machine data by means of the data element ‘Safetyrelated<br />
speed limit active’.<br />
• After having set the PLC interface signal, the safety-related axis speed<br />
only becomes effective in the next NC block or after an immediate<br />
stop.<br />
• A modified safety-related axis speed only becomes effective in the<br />
next NC block or after an immediate stop.<br />
• Modifications of the nominal value caused by the spindle override are<br />
ignored by the NC.<br />
In addition to the travel range limits defined in the axis parameters<br />
‘Cxx.011’ and ‘Cxx.012’, further travel range limits can be programmed in<br />
the changeable software limits.<br />
Machine data<br />
Limit X+ 122.6000 mm<br />
Limit X- -56.0000 mm<br />
PLC interface signal<br />
Axis parameter<br />
Fig. 6-9: Changeable software limits<br />
Modification by:<br />
- user<br />
- NC<br />
- PLC<br />
Note: The position values are indicated as machine coordinates.<br />
DOK-<strong>MTC200</strong>-NEW*FUN*V19-AW02-EN-P<br />
X<br />
softlimit-en.FH7<br />
The changeable software limits are set for each axis in machine data<br />
page 12.
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