RTAC-01 Pulse Encoder Interface Module for ABB ACS600/ACS800 | ABB

The Original New ABB RTAC-01 Pulse Encoder Interface Module (3ABD64610805) is a dedicated communication option designed to integrate incremental pulse encoders with ABB variable speed drive systems. Installed directly into the drive's option slot, it enables precise closed-loop speed regulation and accurate position feedback, converting physical quadrature and differential pulse sequences into standardized electrical feedback profiles for the drive's core control processor. Supporting both differential and single-ended encoder topologies with dual encoder power supply outputs (15 VDC or 24 VDC), high-speed operation up to 200 kHz, and robust galvanic isolation, this fieldbus adapter is an essential solution for demanding motion control applications in metallurgy, material handling, pulp and paper, and heavy industrial processing.

Core Engineering Highlights:
Incremental pulse encoder interface (CH A, CH B, CH Z) | Differential or single-ended input | 200 kHz max input frequency | 15-bit speed feedback resolution (0.00305%) | 50 ppm speed feedback accuracy | Dual encoder power supply: +24V DC (±10%, 5W) / +15V DC (±10%, 5W) | 1.5 kV AC galvanic isolation | 38-pin parallel bus connector | Two screw-type terminal blocks | Rotary switch for node ID selection (16–31) | IP20 protection | Compatible with ACS600 and ACS800 series drives

Key Features:

• Original New ABB RTAC-01 module (3ABD64610805)

• Interfaces digital incremental pulse encoders with ABB drive systems

• Supports CH A, CH B, and CH Z (reference/marker pulse) encoder signals

• Accepts both differential and single-ended pulse topologies

• Dual short-circuit proof encoder power outputs: +24V DC (±10%, 5W max.) and +15V DC (±10%, 5W max.)

• High-speed operation up to 200 kHz max input frequency

• 15-bit speed feedback resolution (0.00305%) with 50 ppm accuracy

• 1.5 kV AC galvanic isolation for 1 minute, isolated from logic and earth

• Rotary switch for node ID selection (range 16–31)

• CH A and CH B diagnostic LEDs for signal activity monitoring

• 38-pin parallel bus connector for automatic signal and power transmission

• Two non-detachable screw-type terminal blocks (6-pole and 8-pole) for max. 2.5 mm² wire

• Integrated option frame support for ACS600 option system slots

• High galvanic isolation mitigates common-mode electrical noise and grounding loop currents

Applications:

• Closed-loop speed and position tracking in ACS600/ACS800 option drive environments

• Direct rotary pulse encoder feedback processing for process line conveyors

• High-precision speed feedback interfacing in material handling automation

• Metallurgy and heavy rolling mills requiring synchronized roller speed control

• Cranes, hoists and material handling requiring zero-speed torque hold and payload position tracking

• Pulp and paper processing for high-speed rewinding and web tension control

• Textile and printing facilities for multi-axis synchronized web configurations

• Mining and heavy conveyors for precise ramped braking and position management

Technical Specifications:

Encoder Interface:

Power Supply Outputs:

Environmental & Physical:

System Compatibility:

• Compatible with ABB ACS600 series drives

• Compatible with ABB ACS800 series drives

• Requires ACS 800 Standard Application Program version ASXR7000 or later

• Mounts into drive option slots (SLOT 1 or SLOT 2)

• Can be mounted onto external I/O Module Adapter (AIMA-01)

• Supports closed-loop speed and position control via incremental encoder signals

Installation Notes:

• The module plugs directly into the drive SLOT 1 or SLOT 2 and is secured with a retaining clip and two screws

• Signals and power are automatically connected via a 38-pin connector

• The screws ground the I/O cable shield connected to the module and interconnect the GND signal of the module with the RMIO board

• Electrostatic prevention measures: Ensure a grounded wrist strap is worn during unpacking and slot insertion

• Option card mechanical placement: Slide the card firmly into the host drive's option slot guide tracks, confirming the rear pins are fully mated before securing mounting screws

• Shield grounding management: Terminate encoder signal cable shields at the designated ground clamps on the drive chassis to minimize electromagnetic interference (EMI)

• Terminal verification: Check that the modular terminal blocks X1 and X2 are fully pressed down into their sockets

Included Accessories:

• RTAC-01 module × 1

• Encoder power supply voltage selection jumper × 1

• M3 × 8 mm screws × 2

• User manual × 1

Related Products:

• AIMA-01 – External I/O Module Adapter for mounting RTAC-01 outside the drive

• ACS600 – ABB drive platform compatible with RTAC-01

• ACS800 – ABB drive platform compatible with RTAC-01

• ACS580 – General purpose drive series (alternative drive platform)

• ACS880 – Industrial drive series (alternative drive platform)

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. ABB is a trademark of ABB Group.