THORLABS LTS Series - Page 34

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LTS Series Long Travel Stages
Homing Settings
When homing, a stage typically moves in the reverse direction, (i.e. towards the
reverse limit switch). The following settings allow support for stages with both Forward
and Reverse limits.
Direction - the direction sense that the motor moves when homing, either Clockwise
or Counter Clockwise.
Limit Switch - The hardware limit switch associated with the home position, either
Ignore, Clockwise or Counter Clockwise.
Zero Offset - the distance offset (in mm or degrees) from the limit switch to the Home
position.
Velocity - the maximum velocity at which the motors move when Homing.
For further information on the home position, see Section C.2.2.
Hardware Limit Switches
The operation of the limit switches is inherent in the design of the associated stage or
actuator. The following parameters notify the system to the action of the switches
when contact is made. Select Reverse or Forward as required, then select the
relevant operation.
Switch Makes - The switch closes on contact
Switch Breaks - The switch opens on contact
Ignore/Absent - The switch is missing, or should be ignored.
Note
Typically, the following two parameters are set the same, i.e. both Forward or both
Reverse.
Note
The minimum velocity and acceleration/deceleration parameters for a home move
are taken from the existing move velocity profile parameters.