Difference between revisions of "Hard-stop homing"
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| − | Hard-stop [[Homing|homing]] is a '''sensorless''' method for homing/referencing the axis to a known absolute position. Hard-stop homing is just like normal home switch based homing but does not require any type of switch. Instead hard-stop homing detects the mechanical end of travel of the axis being homed. This is done by driving axis gently towards end of axis until motion stops due to mechanical block. | + | [[File:Linear axis with switches.png|thumb|320px|End switches and home switch of linear axis are elimiated by Hard-stop homing]]Hard-stop [[Homing|homing]] is a '''sensorless''' method for homing/referencing the axis to a known absolute position. Hard-stop homing is just like normal home switch based homing but does not require any type of switch. Instead hard-stop homing detects the mechanical end of travel of the axis being homed. This is done by driving axis gently towards end of axis until motion stops due to mechanical block. |
==Hard-stop homing support== | ==Hard-stop homing support== | ||
{{#ev:youtube|ForDnEtwwNU|320|right|Tutorial video of hard-stop homing with Argon servo drive.}} | {{#ev:youtube|ForDnEtwwNU|320|right|Tutorial video of hard-stop homing with Argon servo drive.}} | ||
Revision as of 00:17, 16 February 2015
Hard-stop homing is a sensorless method for homing/referencing the axis to a known absolute position. Hard-stop homing is just like normal home switch based homing but does not require any type of switch. Instead hard-stop homing detects the mechanical end of travel of the axis being homed. This is done by driving axis gently towards end of axis until motion stops due to mechanical block.
Hard-stop homing support
Most of Granite Devicse drives support hard-stop homing as standard feature. In such models, it is possible to configure the maximum torque or force used, motion speed, and detection threshold of home point. It is also possible to enable the search of feedback device index pulse for more accurate homing. Index pulse is searched after mechanical end point has been detected.
Key properties
- No switch needed - reduced wiring and increased reliablity
- Very repeatable when done against stiff mechanical stop
- Easy to setup
