Allen-Bradley 25-ENC-2 Incremental Encoder Input

The 25-ENC-2 is an Allen‑Bradley PowerFlex 527 Incremental Encoder Input module that plugs into PF527 drives to receive encoder feedback for closed‑loop motor control. Designed for incremental encoder signals, it provides A and B channels plus an index (Z) for quadrature feedback and supports both single‑ended and differential signaling to accommodate a wide range of encoder types. On the 25‑ENC‑2/B variant, DIP switches enable HTL/TTL signaling options, giving compatibility with different encoder output levels; encoder power can be supplied from the PF527's internal drive power (12 VDC, about 250 mA) or from an external supply if needed. Typical applications include precise speed regulation, position control, and motion profiling in automation systems that use PowerFlex 527 drives, where encoder feedback is essential for accurate velocity and position control.