Product Description:

The HS202540454B7PS is an incremental rotary encoder manufactured by Danaher for the Dynapar Encoders series. Designed for integration on motor or gear shafts, it translates rotational movement into two-channel quadrature pulses so drives and PLCs can monitor position and speed in automated machinery. The model mounts through a hollow bore and is secured by a slotted tether with a cover, permitting quick installation while isolating the sensing head from housing stresses common on conveyors, web lines, and indexing tables.

The encoder accepts a shaft through a 3/8 in bore and uses a glass code disc with low thermal expansion to maintain pulse accuracy over wide temperature changes. The sealed housing is rated NEMA 4/IP65, protecting the internal components against dust and water exposure, while the mounting arrangement keeps the cover aligned during washdowns. Signal bandwidth provides a minimum frequency response of 100 kHz, so controllers can count pulses at high rotational speeds without missing edges. The output uses a 7272 line-driver circuit with a 40 mA sink or source capacity, allowing connection to differential receivers over long cable runs. A 10-pin connector with a mating half provides the termination point and eliminates the need for field soldering.

Quadrature timing is arranged so phase A leads phase B during counterclockwise rotation, matching the factory direction convention. Each revolution produces 2540 PPR, permitting fine motion resolution when the encoder is paired with electronic gearing. The mechanical assembly tolerates continuous speeds up to 6000 rpm and has a starting torque of only 12.0 oz-in, minimizing the load placed on the connected drive system. Its low rotor inertia of 5.1 × 10^-4 oz-in-s² helps preserve servo response during rapid acceleration and deceleration. The complete unit weighs no more than 10 oz, reducing cantilever forces on the host machine shaft.