62-PMDF-0120-TB Danaher
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MPN: M060553
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The Danaher 62-PMDF-0120-TB is an encoder from the Dynapar Encoders series with a resolution of 120 PPR and a frequency response of 50 kHz. It features a 5/8 inch single shaft with keyway, can handle a shaft speed up to 3600 RPM, and has enclosure ratings of NEMA 4 and IP66. The encoder supports a differential output type, has a maximum current draw of 115 mA, and weighs 10 pounds.
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Product Description:
The 62-PMDF-0120-TB is a shafted incremental encoder manufactured by Danaher within the Dynapar Encoders series. It mounts on a motor or line shaft to generate position and velocity feedback for drives and PLC-based motion controllers in industrial automation. A single-ended keyed shaft simplifies coupling, and the sealed housing allows direct installation on equipment exposed to oil spray, dust, or washdown cleaning.
The encoder provides 120 PPR, meaning the sensing disc produces 120 equally spaced pulses for every full revolution, giving basic angular resolution for speed regulation tasks. Internal electronics switch cleanly at frequencies up to 50 kHz, so the pulse train remains square at high rotational speeds. The unit supports operating speeds up to 3600 rpm; exceeding this limit can damage the bearings and cause signal dropout. A shaft diameter of 5/8 in matches common U.S. motor frame sizes and includes a ground keyway for positive torque transfer. Control-side current consumption peaks at 115 mA, presenting a low load for compatible supply rails. The enclosure is rated NEMA 4 / IP66, providing complete protection against dust ingress and powerful water jets. Differential quadrature outputs provide directional motion data, while the terminal strip offers a straightforward wiring interface. The rotating assembly has an inertia of 285 g-cm², and the encoder weighs 10 lb.
Signal lines can handle up to 40 mA in sink or source operation, allowing the encoder to feed optically isolated counters or line receivers over extended cable runs. The bearings withstand a radial load of 45 lb, while the axial load limit is 15 lb to prevent excessive end thrust from shortening bearing life. Startup requires only 15 oz-in of torque, minimizing the additional load placed on small servo motors. The keyed shaft has a 0.188 × 0.094 in slot that provides repeatable engagement with a compatible coupling. Wiring terminates at the integrated terminal strip, eliminating the need for a specialized mating connector and simplifying cable attachment inside the machine.
