ABB RTAC-0 Pulse Encoder Interface Module

Product Overview

The ABB RTAC‑0 is an industrial-grade pulse encoder interface module designed to receive and process signals from rotary or optical encoders. It converts mechanical motion into digital pulse outputs, providing high-speed, high-precision position, velocity, and direction information. RTAC‑0 is compatible with ABB PLCs and drive systems, ensuring reliable data transmission in industrial environments.

Technical Specifications

• Model: RTAC‑0

• Type: Pulse Encoder Interface Module

• Input Signal Types: Incremental encoder (TTL, HTL, RS422 selectable)

• Pulse Frequency Range: Up to 500 kHz (depending on encoder)

• Resolution: High-precision counting depending on encoder

• Supply Voltage: 24 V DC

• Input Current: Typical 50 mA

• Output Type: Pulse / Direction output

• Interface: Compatible with ABB PLC or drive modules

• Operating Temperature: 0–60 °C

• Mounting: DIN rail or panel mount

• Signal Protection: Over-voltage and over-current protection

Key Features & Advantages

• High-precision acquisition — Supports high-speed pulse input for accurate position and speed control

• Multi-signal compatibility — TTL, HTL, RS422 encoder signals supported

• Strong interference immunity — Industrial-grade design for EM interference environments

• Easy integration — Fully compatible with ABB PLCs and servo drives

• High reliability — Built-in over-voltage and over-current protection for long-term stable operation

Application Areas

• Industrial automation and motion control systems

• Servo drives and closed-loop control systems

• Robotics and robotic arm position feedback

• Conveyors, winding machines, packaging machinery motion detection

• High-precision machining and CNC machine position monitoring

Precautions

1. Ensure the input pulse signal type is compatible with the module

2. Install in a well-ventilated environment, avoiding high temperature and humidity

3. Secure wiring to ensure reliable encoder-to-module connection

4. Avoid routing alongside high-voltage or motor cables to reduce interference

5. Configure resolution and filtering parameters according to control system requirements

6. Regularly inspect signal cables and terminals for loose connections