Siemens LMV36.520 Series - Acquisition of Speed with Hall Generator

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Building Technologies Division Basic documentation LMV36... CC1P7544en
Infrastructure & Citiies Sector 13 Fan control 25.09.2013
Speed sensor
2
Figure 84: Speed sensor
Selection of fan motor
Motor supplier:
Selection of a motor with threaded hole M8 x 15 at the end of the fan motor’s drive
shaft.
Standard motor and machining (drilling hole and cutting thread M8 x 15).
13.7.2 Acquisition of speed with Hall generator
If the speed is acquired via a Hall generator, the requirements for safety-related
applications are the same as those for the speed feedback signal via sensor disk.
Required is an asymmetric signal with the 3 pulses of 60°, 120° and 180° for detection
of the direction of rotation.