Editing Homing
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For example if linear axis is equipped with an incremetal [[Feedback devices|feedback device]], then position of the axis is not known by the machine after system power-on. To acquire absolute position, axis must be driven to known point (home point) where the position counter is zeroed. | For example if linear axis is equipped with an incremetal [[Feedback devices|feedback device]], then position of the axis is not known by the machine after system power-on. To acquire absolute position, axis must be driven to known point (home point) where the position counter is zeroed. | ||
==Homing methods== | ==Homing methods== | ||
− | + | Most of Granite Devices drives support homing axis by comibining different optional motion elements as a sequence: | |
#Move axis to search a home '''switch''' or mechanical '''end of travel''' (a.k.a. [[Hard-stop homing|hard-stop homing]]), direction and speed of motion is selectable. | #Move axis to search a home '''switch''' or mechanical '''end of travel''' (a.k.a. [[Hard-stop homing|hard-stop homing]]), direction and speed of motion is selectable. | ||
− | # | + | #Move axis to search [[Feedback devices|feedback device]] '''index pulse'''. Index pulse provides very high position repeatability. Direction is selectable. |
− | + | #Move axis to '''offset position'''. In practice user can enter a position value to drive where axis is driven after all previous homing functions are done. | |
− | # | + | #Set absolute position '''travel limits''' (soft limits). User may also set upper & lower bounds for position [[Setpoint signal|setpoint]] to possibly elimiate the need of axis limit switches. |
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==See also== | ==See also== | ||
*[[Hard-stop homing]] | *[[Hard-stop homing]] | ||
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