ABB ASTO-11C 3AUA0000061302 Product Documentation

Product Introduction

The ABB ASTO-11C 3AUA0000061302 is a high-performance safety torque off (STO) module designed for use in industrial automation and motor control applications. It ensures safe disconnection of motor power in emergency situations, complying with international safety standards such as IEC 61800-5-2 and EN 60204-1.

This module is widely used in machinery, robotics, and conveyor systems where safety is critical. It provides a reliable and fail-safe method to cut off torque generation in motors, preventing accidental startups and ensuring operator safety.

Product Advantages

1. High Safety Compliance – Meets SIL 3 (Safety Integrity Level) and PL e (Performance Level e) standards.

2. Fast Response Time – Ensures immediate power cutoff in emergency scenarios.

3. Compact Design – Space-saving for easy integration into control cabinets.

4. Wide Voltage Range – Compatible with various industrial power supplies.

5. Robust Construction – Designed for harsh industrial environments with high resistance to electrical noise and vibrations.

6. Easy Installation – Simplified wiring and mounting for quick deployment.

Technical Parameters

Product Applications

• Industrial Machinery – Emergency stop systems for presses, CNC machines, and robotic arms.

• Conveyor Systems – Safe shutdown in material handling applications.

• Packaging Machines – Ensures operator safety during maintenance.

• Elevators & Hoists – Prevents unintended movement.

• Automotive Assembly Lines – Complies with safety regulations in automated production.

Compatible & Recommended Models

The ASTO-11C can be used alongside the following ABB products:

• Motor Drives – ACS880, ACS580

• Safety Relays – SRB 301, SRB 501

• Control Units – CP600, CP400

Installation Instructions

1. Mounting – Secure the module on a DIN rail inside a control cabinet.

2. Wiring – Connect the input power supply (24V DC) and link the STO output to the motor drive.

3. Testing – Verify the emergency stop functionality before full operation.

4. Safety Check – Ensure all connections comply with local electrical codes.

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FAQ (Frequently Asked Questions)

Q1: What is the primary function of the ASTO-11C module?
A1: It provides a Safety Torque Off (STO) function, ensuring motors stop safely in emergencies by cutting off power.

Q2: Can this module be used with third-party motor drives?
A2: Yes, but compatibility must be verified based on voltage and current ratings.

Q3: What is the response time of the STO function?
A3: Typically less than 20 ms, ensuring rapid shutdown.

Q4: Is the ASTO-11C suitable for outdoor use?
A4: No, it has an IP20 rating and should be installed in a protected enclosure.

Q5: Does it require external diagnostics for fault detection?
A5: Basic models require manual checks, but advanced versions (e.g., ASTO-12C) include diagnostics.

Q6: Can multiple STO modules be connected in series?
A6: Yes, for redundancy, but wiring must follow safety standards to avoid signal degradation.