The 8AC123.60-1 ACOPOS plug-in module is designed to connect standard incremental encoders and absolute encoders with a synchronous serial interface (SSI) directly to B&R ACOPOS servo drives, enabling high‑precision position detection synchronized with the ACOPOS controller clock. It monitors encoder input signals to detect open circuits, conductor faults, encoder supply failures and parity or plausibility errors, increasing system reliability and simplifying diagnostics.
For incremental encoders, the module supports a 32-bit counter, 4x evaluation (counting on all edges), a maximum input frequency of 200 kHz, and a counter frequency up to 800 kHz, with minimum edge spacing of 0.6 µs. Inputs are differential (A, A; B, B; R, R) with differential input voltages between 2.5 V and 6 V, suitable for industrial TTL/RS‑422 style signals. For SSI absolute encoders, it supports Gray or binary coding, baud rates up to 200 kbit/s, and word sizes up to 31 bits, with differential clock output (120 Ω) and data input levels between 2.5 V and 6 V.
The module provides an internal encoder supply of 5 V DC or 15 V DC, each with up to 350 mA load capacity, short‑circuit proof and overload‑protected, and includes sense lines for 5 V to compensate up to 2 V voltage drop in the encoder supply cable. It uses differential signal transfer and allows encoder cable lengths up to 50 m, with a 15‑pin female DSUB connector for encoder connection and UP/DN status LEDs for indication of encoder activity and direction. Typical module power consumption is approximated as Pmodule = Pencoder × k + 0.6 W, with a maximum of about 7.5 W depending on encoder load.
The 8AC123.60-1 is specified for operation from 5 to 40 °C nominal (max 55 °C) and 5–85% relative humidity, with storage down to −25 °C and up to 95% humidity. It is certified for CE, cULus (E225616) power conversion equipment, and KC, making it suitable for global deployment. Typical applications include packaging machines, printing lines, machine tools and other motion systems where ACOPOS servo axes require flexible support for both incremental and SSI absolute encoders.
Key Specifications
