Emerson Machinery Health AMS 6300 SIS Operating Manual page 53

Overspeed protection system
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Operating Manual
MHM-97442
- Type PR 6422: 4 mm
- Type PR 6423: 6 mm
- Type PR 6424: 12 mm
When using trigger wheels with normal toothing, the following modules (gear
parameter) are recommended:
- Type PR 6422: module ≥ 8
- Type PR 6423: module ≥ 12
- Type PR 6424: module ≥ 24
Calculate the gear parameter (module) with the following formula:
Module = P/π
Pitch P is the distance between the tooth centers on the pitch circle (see
Figure 4-23: Distance tooth center to tooth center gear wheel
A. Pitch P
B. Width of the tooth tip
Trigger wheel with rectangular tooth profile
A trigger wheel with rectangular tooth profile is the ideal trigger wheel for the
AMS 6300 SIS since beside others these wheels offer the maximum signal amplitude. See
Figure 4-24
MHM-97442, Rev. 2.06
for this tooth profile.
Installation and commissioning
February 2023
Figure
4-23).
53

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