Product Description:

The HA62525400101 is an incremental rotary encoder supplied by Danaher within the Dynapar Encoders series. It converts shaft position into square-wave electrical pulses that a drive, PLC, or motion controller can count to monitor speed and direction in industrial automation systems such as conveyors, winders, and servo axes. By mounting directly on a motor or intermediate shaft, it provides noncontact feedback without gearing, allowing the controller to close velocity or position loops with little added inertia.

The encoder uses a flange mount, so alignment is fixed by the pilot rather than the screws, and its 3/8 in solid shaft couples to standard flexible couplings. Internal bearings limit starting torque to 2.5 oz-in maximum, minimizing the load on small motors. With 2,540 pulses per revolution, the quadrature output supports fine resolution. An index channel supplies one reference pulse per turn, while phase sense is arranged so channel A leads channel B during counterclockwise rotation. The single-ended interface relies on an open-collector transistor array, and logic transitions remain clean because the design tracks changes up to 100 kHz. Mechanical integrity is maintained at surface speeds corresponding to 5,000 rpm, so the sensor can follow high-speed spindles without pulse dropout.

Electrical connection is provided through a 7-pin MS plug that carries power, quadrature channels, and the index signal to the control panel. A built-in 2.2 kΩ pull-up resistor biases each open-collector line. The electronics draw up to 80 mA, while any single channel can sink 40 mA without damage. The aluminum housing is gasketed to NEMA 4/IP66, blocking dust and directed water during use on outdoor machinery. This enclosure also protects the internal optical and electronic components from contaminants that could interfere with pulse generation.