Mechanical installation
T40FH
A4429-3.0
HBM: public
29
5.8
Rotational speed measuring system
The rotor is delivered as standard with a ring gear for the rotational speed mea
suring system. The option is available to fit the stator with a sensor head to
scan the mechanical increments (ring gear).
Sensor head for
measuring rotational
speed (optional)
Ring gear
Fig. 5.10
Torque transducer with rotational speed measurement (optional)
Important
The rotational speed measuring system uses a magnetic measuring principle.
In applications where high magnetic field strengths can occur, e.g. eddy-current
brakes, implement suitable measures to ensure that the maximum permissible
magnetic field strength cannot be exceeded (see Chapter 15 "Specifications",
Page 60).
Stator alignment (rotational speed measuring system)
For measuring mode to operate perfectly, the speed sensor must be placed at
a defined position to the rotor ring gear. When the radial and axial alignment of
