User's Manual

Mechanical installation
T40FM A3276-8.0 HBM: public 39
Important
The speed measuring system uses a magnetic measur
ing principle. In applications where high magnetic field
strengths can occur, e.g. eddy-current brakes, implement
suitable measures to ensure that the maximum permiss
ibly magnetic field strength cannot be exceeded (see
Chapter 14 "Specifications", Page 78).
Stator alignment (rotational speed measuring
system, optionally with reference signal)
The rotational speed measuring system is correctly
aligned when the stator is precisely aligned for torque
measurement. A reduction in the distance between the
sensor head and magnetic ring can in some cases im
prove the signal quality when the rotor is centrally posi
tioned in the stator. To do this, loosen both screws on the
sensor head and push the sensor head in parallel as
marked with the arrows in Fig. 5.13.
The sensor for recording the reference signal is perman
ently set and must not be adjusted.