Hengstler AC58 Series 0574412 Optical Absolute Rotary Encoder - Horizontal, Flange Mount, IP64/IP65

An absolute encoder, like the Hengstler AC58, provides a unique digital code for each shaft position, meaning the exact position is known immediately on power-up without needing a reference point. An incremental encoder only outputs pulses relative to movement and requires a homing routine to establish a known zero position after each power cycle.

This encoder outputs a binary code. You will need to connect its power supply (7-30 VDC) and ground pins, and then interface its parallel binary output lines to the digital inputs of your PLC, motion controller, or counter module. Always refer to the specific pinout diagram for the 0574412 model for correct connections.

Yes, its IP64 and IP65 ratings make it suitable for environments with dust and water spray. IP64 protects against dust ingress and water splashes from any direction, while IP65 protects against low-pressure water jets from any direction, making it ideal for many industrial and washdown applications.

"0 Detents" indicates this encoder has no mechanical click stops or predefined positions. The shaft rotates smoothly and continuously, which is essential for applications requiring precise, uninterrupted angular measurement without any tactile feedback interfering with the motion.