3 Product Description
L-738 / V-738 Precision XY Stage
MP183E
Version: 1.1.2
13
3.7
Technical Features
3.7.1
Encoder
The L-738.051111, L-738.051112, L-738.053111, L-738.053112, and V-738.056111 models are
equipped with an optical linear encoder. Optical linear encoders measure the actual position
directly (direct metrology). Errors occurring in the drive, such as nonlinearity, backlash or elastic
deformations cannot influence the measurement of the position.
Model L-738.053132 is equipped with an optical rotary encoder. A rotary encoder is
implemented at a rotating point in the drivetrain, e.g., the motor shaft.
Refer to the table in the "Specifications" section for the encoder resolution (p. 37).
Model L-738.051100 does not have an encoder.
3.7.2
Limit Switches
The stage is equipped with optical limit switches.
Each limit switch sends its signal to the controller on a dedicated line. The controller then stops
the motion. If the controller does not stop the motion in time, the stage runs into the hard stop.
See "Limit Switch Specifications" for more information (p. 43).
3.7.3
Reference Point Switch
The stage is equipped with a direction-sensing reference point switch (see "Reference Point
Switch Specifications" (p. 43)).
The commands that use the reference signal are described in the user manual of the controller
and/or in the corresponding software manuals.
