Product Short Description
Product Introduction
The ABB ACS-RTAC-01 is a dedicated pulse encoder interface module designed for ACS800 and DCS800 series drives. It enables precise speed and position feedback from incremental encoders to the drive, supporting high‑performance closed‑loop control. This module accepts both single‑ended and differential encoder signals, supplies power to the encoder, and processes pulse data with high accuracy and noise immunity. It is widely used in applications requiring tight speed regulation, positioning control, and high dynamic response.
Description
Technical Specifications
Core Interface Specifications
- Signal Type: Incremental encoder (A, B, Z channels)
- Input Mode: Differential (RS422) or single‑ended (TTL)
- Max Input Frequency: 200 kHz
- Encoder Power Output: 5 W at 15 V DC or 24 V DC (selectable via jumper)
- Speed Accuracy: ±50 ppm
- Encoder Resolution: Up to 20,000 pulses per revolution (PPR)
- Signal Levels: Compatible with 15 V and 24 V encoder systems
Compatibility
- Compatible Drives: ABB ACS800, DCS800
- Firmware Requirement: ACS800 Standard Application ASXR7000 or later
- Slot Location: Installs in Slot 1 or Slot 2 of the drive control unit
Electrical & Environmental
- Operating Voltage: 15 V DC / 24 V DC
- Current Consumption: 55 mA
- Operating Temperature: -25°C to +70°C
- Storage Temperature: -40°C to +85°C
- Humidity: 5%–95% RH, non‑condensing
- Protection Class: IP20
- Certifications: CE, UL, CSA
Mechanical
- Dimensions: ~90 × 30 × 23 mm
- Weight: ~0.08 kg
- Mounting: Drive slot mounting (not DIN‑rail)
- Connections: Screw terminals or plug‑in connectors
Key Features
- Dual Signal Support: Accepts both differential and single‑ended encoder inputs for broad compatibility.
- High‑Speed Processing: 200 kHz input frequency supports high‑resolution encoders and fast motor speeds.
- Built‑in Encoder Power: Supplies 15/24 V DC power directly to the encoder, eliminating external power supplies.
- Precision Feedback: Delivers ±50 ppm speed accuracy for precise closed‑loop control.
- Signal Filtering: Programmable filtering reduces electrical noise and ensures stable feedback.
- Plug‑and‑Play Installation: Directly inserts into drive slots with simple jumper configuration.
- Industrial Robustness: Wide temperature range and high noise immunity for harsh environments.
- Full Compatibility: Native support for ACS800 and DCS800 drive platforms.
Application Scenarios
- Closed‑Loop Motor Control: Precision speed control for pumps, fans, compressors, and conveyors.
- Positioning Systems: Axis positioning for machine tools, robotics, and material handling.
- High‑Dynamic Applications: Cranes, hoists, winders, and printing presses requiring fast response.
- Test Benches: Dynamometers and test equipment needing accurate speed regulation.
- Retrofit Projects: Upgrading open‑loop ACS800/DCS800 drives to closed‑loop performance.
- Process Industries: Chemical, oil & gas, pulp & paper, and metal processing machinery.
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