Hall Sensor Box - Siemens SIMOTICS L-1FN3 Configuration Manual

4.1.4

Hall Sensor Box

Use of the Hall sensor box
The Hall sensor box is used in incremental position measuring systems. It measures the
motor pole position duirng power-up so that the drive can carry out a reference point
approach (coarse synchronization). After the reference point approach, then a changeover
can be made to a pole position angle saved in the software (fine synchronization). A Hall
sensor box is required for motors for which, due to technical reasons, a software-based
detection of the pole position is not possible. The Hall sensor box is also required for large
gantry axes with 2 converters and 2 position measuring systems. Pole position identification
of the two motors is not always possible due to the rigid coupling and potential twisting.
The Hall sensor must be adjusted to the respective motor and its pole width and be mounted
at a certain position with respect to the primary section.
Selection criteria for Hall sensor boxes
The selection of the Hall sensor box depends on:
● the motor type (050...150 or 300...900)
● the length of the motor (1N...2N... or 1W...2W...)
● the location in which the Hall sensor box is fitted (on or opposite the cable outlet side of
the primary section)
● the required cable outlet direction (in or perpendicular to the direction of travel)
1FN3 linear motors
Configuration Manual, 10/2018, 6SN1197-0AB86-0BP2
Motor components and options
4.1 Motor components
95