H220001001225 Danaher
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The Danaher H220001001225 is an encoder in the Dynapar Encoders series, featuring bidirectional direction sensing and a maximum shaft speed of 6000 RPM. It has a resolution of 1 PPR, a shaft style of 3/8 inch double-ended, and a weight of up to 14 ounces. The encoder provides an open collector output interface with single-ended output type and is terminated with a 3-foot cable.
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Product Description:
The H220001001225 is an incremental rotary encoder manufactured by Danaher for the Dynapar Encoders series. Designed to sit directly on a machine shaft, it translates mechanical rotation into timed electrical pulses that a PLC or drive uses to calculate position, velocity, and rotational direction. By providing this feedback, the encoder supports closed-loop control in packaging lines, indexing tables, and other motion-critical installations where precise speed regulation and phase tracking are required.
Electrically, the device emits a single pulse per revolution, giving it a resolution of 1 PPR. The two output channels are shifted by 90° ± 18° electrical, while their duty cycle remains within 180° ± 18° electrical; these timing relationships allow quadrature decoding for direction detection and accurate counting. A minimum frequency response of 120 kHz maintains pulse integrity at high rotational speeds. The encoder uses an open-collector output without a pull-up resistor, so an external resistor must be supplied to suit the receiving logic family. The signaling scheme is single-ended, and there is no index channel, leaving only channels A and B. Its moment of inertia is 1.3 × 10⁻⁴ oz-in-s², which minimizes the load added to the rotating system. A 3-foot integrated cable provides the electrical connection without requiring a separate encoder-side connector.
Mechanically, the unit senses rotation in a bidirectional manner, allowing it to report both forward and reverse motion. It tolerates continuous operation at speeds up to 6000 rpm without signal degradation. The bearing design permits combined shaft loads of 40 lb radial and 30 lb axial, allowing direct coupling to motors or gearboxes. Its 3/8-inch double-ended shaft supports through-shaft mounting and provides access from either side of the encoder body. Starting torque remains below 2.5 oz-in maximum, so the encoder adds little friction to the connected drive system. The overall mass does not exceed 14 oz, which helps keep cantilever forces low when the unit is installed on light machinery. These mechanical characteristics allow the encoder to monitor shaft movement without imposing substantial rotational resistance on the connected equipment.
