Product Description:

The HS35R4096638J is a hollow-shaft optical encoder produced by Danaher within the Dynapar Encoders series. The unit attaches directly to a motor or machine shaft and converts angular displacement into electrical pulses that a drive, PLC, or position controller can count. By providing real-time feedback, the device supports speed control, homing, and coordinated motion in automated conveyors, packaging stations, and material-handling axes. Its compact cylindrical housing allows installation in tight equipment enclosures without altering the existing shaft length.

The device operates as an incremental encoder, translating each rotation into symmetrical A and B pulse streams with a once-per-revolution index pulse. Signals are routed through an 8-pin M12 connector that provides shield, supply, and differential channel terminations in a keyed format. The aluminum body and shaft seals provide a NEMA 4/IP66 enclosure rating, protecting the internal optics against airborne dust and high-pressure washdown. A frequency response of at least 100 kHz allows the sensor to produce high line counts without missing edges when the host axis accelerates. The driver circuitry supports rise and fall times of less than 1 µs, preserving square-wave fidelity across long differential cable runs. During operation, the encoder draws up to 100 mA from the power supply, leaving current capacity available for other sensors connected to the same rail.

The encoder introduces no more than 5.0 oz-in of starting torque, permitting direct coupling to light-duty servo shafts without imposing a substantial mechanical load. Dynamic balance supports accurate pulse generation at speeds up to 3600 rpm. The unit weighs 16 oz, which helps prevent excessive loading on unsupported motor shaft extensions. Axial end play of ±0.050 in accommodates limited shaft movement while maintaining proper encoder operation. Radial runout of ±0.025 in provides installation tolerance for rotating shafts, and the 3.10 in body length allows the encoder to fit within compact drive housings.