AVL F-FEM-CON - Toothed Disk with N-1 Teeth

Operation
60
F-FEM-CON — User’s Guide
Toothed disk with 60-2 teeth:
4.6.8 Toothed Disk with n-1 Teeth
The method described in chapter Toothed Disk with n-2 Teeth on page 59 can
also be applied for tooth gaps of one tooth. Usually such toothed disks have 35
teeth, where one is missing, but the method is suitable for other tooth counts as
well, and therefore this method is also called "n-1".
The related sensor attribute is called "Freq-1 A-Unsigned".
The minimum speed is 428 rpm, below that the gaps are not detected due to the
limited counter width. At the F-FEM-CON Advanced this limit is 535 rpm. These
speed limits are based on a 35-1 teeth disk. For a toothed disk with other teeth
count use the frequency value related to the respective speed limit to calculate
the rpm-limit (in inverse proportion to the tooth count ratio).
Fig. 34