2212703244 Danaher
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The Danaher 2212703244 is an incremental encoder in the Dynapar Encoders series with a 1270 PPR resolution and a bidirectional rotation capability. It features a 1/4 inch single-ended shaft, supports shaft speeds up to 6,000 RPM, and uses a CMOS line driver for differential output. The encoder has a 10 ft cable, weighs 14 ounces, and can handle axial and radial shaft loads of 30 lb and 40 lb respectively.
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Product Description:
The 2212703244 is an incremental rotary encoder manufactured by Danaher for the Dynapar Encoders series. As an incremental unit, it produces quadrature pulse trains that a motion controller counts to determine position and velocity, allowing closed-loop feedback on servo motors and other rotating shafts in industrial automation. Rotation is bidirectional, and the pulse phase maintains the correct sequence in either direction so the drive can track reversals without losing count.
This model provides 1,270 PPR, so every mechanical revolution generates 1,270 equally spaced pulses, providing fine angular resolution for mid-range positioning tasks. A differential output delivers complementary A and B channels that reject common-mode noise on long cable runs. The sensing electronics respond at frequencies up to 120 kHz, permitting reliable counting when the shaft spins quickly or when high interpolation factors are applied. The maximum operating speed is 6,000 rpm. A 1/4-inch stainless-steel shaft mates directly with many servo couplings used in automated machinery.
The startup torque is limited to 2.5 oz-in, minimizing the load on small motors during acceleration. The shaft can accept an axial load of 30 lb and a separate radial load of 40 lb without compromising bearing life, supporting the belt tension or gear mesh loads found in packaging equipment. A molded cable with a length of 10 ft carries power and the CMOS line-driver signals to the controller. The encoder has an overall mass of 14 oz, so it adds little weight to the driven axis. Additional attributes include a CMOS line driver that sources balanced currents, a moment of inertia of 1.3 × 10⁻⁴ oz-in-s² that helps the shaft follow rapid speed changes, and a single-ended shaft style that simplifies fixture design.
