ER-JH-7200D

ER-JH-7200D is an Okuma absolute encoder designed for mounting on a servo motor. It uses a multi-pole resolver to determine rotational position and provides feedback through a serial output. The shafted casing accommodates a mechanical shaft connection, while the attached cable provides a fixed electrical connection to the associated control system.

The encoder operates with an 81.92 MHz clock frequency for internal timing and produces 16,384 clock pulses per 0.1 revolution for position measurement. Its resolver uses a 5 kHz sine/cosine excitation signal. The rotor step is one position for each 360º phase cycle, and the lower-digit step is 0.0001 for fine position increments. Pulse-type heads determine the upper digits used to track extended rotational position. The output-shaft cycle is 7,200 revolutions, establishing the rotation span represented before the absolute position cycle repeats.