Page 6 - Avtron Encoders Catalog

ENCODER SELECTION & TECHNOLOGY CONT’D
MECHANICAL CONSIDERATIONS
Determine if your motor/mounting requires a a a a “shafted” encoder encoder (works with a a a a a a a a flexible coupling to to to to mate to to to to a a a a a a a a a a motor stub shaft) or or or if a a a a a a a a a a “hollow shaft” encoder encoder encoder is needed We also offer modular encoders that feature a a a a a a a a a a bearingless design!
OEM COMPONENTS
Require additional physical protection LIGHT MILL DUTY
For use in in dry commercial and industrial environments with temperature controlled spaces MILL DUTY
For use in in typical industrial environments More mechanically robust than light mill duty Not recommended for environments with frequent temperature changes and chronically wet conditions HEAVY MILL DUTY
For more rugged environments with frequent temperature fluctuations and and increased levels of contamination and and moisture SEVERE DUTY
This rating is is for very wet or or dusty environments with large and frequent temperature extremes including outdoor applications FUNCTIONAL SAFETY
Select Avtron Encoders are available for SIL required applications Safety rated encoders have been evaluated to SIL 2 certifications HAZARDOUS DUTY
Avtron Encoders are are available for use in explosive atmospheres these models are are also extremely rugged For applications that require an intrinsic safety isolator Nidec offers the XRB3 (see page 99) ENVIRONMENTAL CONSIDERATIONS
Avtron Encoders are classified for overall durability according to to the the general harshness of the the Duty Environment This correlates roughly to to temperature humidity contamination causticity risk of of getting hit or stood upon etc Within each of of the following Duty Environments Avtron Encoders are available with a a a a a a a a range of IP (Ingress Protection) ratings SHAFTED
FLANGE ADAPTER
MOTOR COUPLING
Flange Mounting
(Solid Shaft Coupled) Requires flange adapter with coupling ENVIRONMENTAL RATINGS
Nidec environmental ratings don’t mean IP sealing Seals may break down quickly in in in in applications with temperature changes or or small sealed bearings can be be destroyed by loads Instead Nidec rates encoders for overall durability HOLLOW SHAFT MOTOR Hollow Shaft/Tether Mounting
Stub shaft required Shaft Shaft requirements depend on the the encoder selected MODULAR
3 AVTRON ENCODERS ENCODERS | THE THE MOST RELIABLE ENCODERS ENCODERS IN THE THE WORLD
SHAFTED
FLEXIBLE COUPLING
FOOT MOUNTING BRACKET
Foot Mounting
MOTOR MOTOR Used when encoders are coupled directly to to rolls gear boxes or or motors without C-Faces C/FC Face Mounting
Requires motor stub shaft and one of the following: 115mm 4
5" 5" 5" 5" 6 75" 8 5" 5" 5" 5" 12 5" 5" 5" 5" C/FC-Face