2101003000 Danaher
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The Danaher 2101003000 is an encoder in the Dynapar Encoders series with a maximum shaft speed of 6000 RPM and a frequency response of at least 120 kHz. It has a single ended shaft with a diameter of 0.2497 inches, supports 100 pulses per revolution, and offers an open collector output type. The encoder supports a maximum radial shaft load of 40 pounds and weighs up to 14 ounces.
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Product Description:
The 2101003000 is an incremental shaft encoder manufactured by Danaher for the Dynapar Encoders series. Installed on a rotating axis, it translates angular motion into discrete pulse trains so a drive or PLC can track position, speed, and direction in conveyor lines, indexing tables, and general factory automation. The device mounts directly to the driven shaft and delivers a digital feedback signal that simplifies closed-loop regulation without requiring analog transducers. Its compact frame and standardized connections make integration straightforward in both retrofit and new-equipment applications.
In operation, the encoder generates 100 PPR, so each revolution is divided into 100 equal increments, allowing controllers to resolve 3.6 degrees of shaft rotation. The internal electronics can toggle at a minimum frequency of 120 kHz, which preserves signal fidelity even when pulses arrive rapidly at high shaft speeds. That capability pairs with the mechanical limit of 6000 rpm, ensuring that the code disc and electronics remain synchronized throughout the speed range. Output switching is provided through an open-collector driver that can pull the line low, while the host system supplies the pull-up through the built-in 2.2 kΩ resistor. The switching transistor tolerates up to 30 VDC while sinking as much as 40 mA. The complete circuit draws no more than 110 mA from the 5 V or 24 V supply rail.
The stainless steel shaft accepts an axial thrust load of 30 lb and a radial side load of 40 lb, making it suitable for belt tensioners or light pinion couplings. The shaft diameter is held to 0.2497 in, so the encoder slides into standard 0.25-inch bores without reaming, and the single-ended shaft style simplifies coupling alignment. Starting friction remains below 2.5 oz-in, minimizing torque drag on small servo motors during acceleration. A 14 oz aluminum housing with sealed bearings preserves mechanical concentricity, allowing the encoder to maintain pulse accuracy during continuous production shifts.
