IFM AC041S AS‑Interface Safety Monitor

IFM AC041S – AS-Interface Safety Monitor with Dual PNP OSSD Outputs

The IFM AC041S is a reliable AS-Interface (AS-i) safety monitor engineered for advanced machine safety in industrial automation environments. Designed to work within AS-i Safety at Work systems, the AC041S monitors connected safety devices—such as emergency stop buttons, safety light curtains, and interlock switches—and enables fail-safe shutdowns when hazardous conditions are detected.

Ideal for applications requiring compliance with EN ISO 13849-1 and IEC 62061, this compact DIN-rail mounted unit features two redundant PNP OSSD outputs, offering high-level safety integrity for your operations. The AC041S simplifies integration with AS-i fieldbus systems, supports up to 31 safety slaves, and provides clear diagnostic LEDs for rapid status monitoring and troubleshooting.

Whether you're designing a new safety system or upgrading an existing setup, the IFM AC041S delivers scalable, intelligent protection for critical machine and operator safety.

✅ Key Features

• Part Number: AC041S

• System Type: AS-Interface Safety at Work

• Outputs: 2 x PNP, OSSD (redundant)

• Monitoring Capacity: Up to 31 safety slaves

• Mounting: DIN rail

• Power Supply: 26.5 – 31.6 V DC

• Status Indication: LED diagnostics for safety status and faults

• Approvals: TÜV-certified, complies with EN ISO 13849-1 (PL d), IEC 61508 (SIL 2)

• Operating Temperature: -25°C to +70°C

• Protection Rating: IP20

⚙️ Typical Applications

• Emergency stop monitoring

• Safety door and interlock systems

• Light curtain integration

• Press and packaging machine safety

• Functional safety compliance in automated systems