What the SICK MICS3-AAAZ40AZ1 Delivers on the Plant Floor

The SICK MICS3-AAAZ40AZ1 is a microScan3 Core I/O safety laser scanner with a 4 m protective field range and a 275° scanning angle. It is a sensor without system plug, built for indoor safeguarding of machines and work areas.

From a maintenance engineer's viewpoint, the value lies in predictable behaviour and simple service access. The scanner reports its state on a graphic colour display and LEDs, so faults are visible at the panel without opening enclosures. Because the M12 8-pin A-coded connector carries power, OSSD outputs and universal I/Os, one rugged connection handles the entire interface.

Key Specifications and Field-Relevant Performance

The microScan3 Core I/O platform is engineered for harsh industrial environments. The following values come directly from the manufacturer data for this model.

• Protective field range: 4 m, with a warning field range of 40 m for early approach detection.
• Scanning angle: 275°, covering a wide area around the sensor face.
• Angular resolution: 0.39°, supporting precise field boundaries.
• Response time: 70 ms, relevant when calculating minimum safety distances.
• Resolution options: 30 mm, 40 mm, 50 mm, 70 mm, 150 mm or 200 mm, configurable to the application.
• Fields and cases: 8 fields and 2 monitoring cases, with up to 4 fields monitored simultaneously.
• Safety ratings: Type 3 (IEC 61496), SIL 2 (IEC 61508), Category 3 (EN ISO 13849) and PL d.
• PFHD: 8.0 × 10⁻⁸, with a mission time of 20 years.

The protective field supplement is 65 mm. In practice, this supplement and the 70 ms response time feed directly into the safety distance calculation for each guarding layout.

Operating Temperature, Input Voltage and Power Supply

Environmental and electrical margins often decide whether a scanner survives a production area. This unit is rated for an operating temperature of −10 °C to +50 °C and a storage temperature of −25 °C to +70 °C. The IP65 protection rating supports use in dusty or washdown-adjacent zones, provided the connector is properly mated.

Supply voltage is 24 V DC with an input range of 16.8 V DC to 30 V DC. Typical power consumption is 7 W without output load. Protection class is III (EN 61140), so the supply must provide the required safety isolation. Ambient light immunity of 3,000 lx helps the scanner tolerate normal plant lighting without nuisance trips.

How Does the microScan3 Core I/O Integrate Into a Safety Circuit?

Integration centres on the single M12 8-pin A-coded male connector. Pin 1 and pin 3 carry +24 V DC and 0 V DC. Pin 2 and pin 4 are the OSSD pair 1 outputs, and pin 8 provides functional earth and shielding. Pins 5, 6 and 7 are three configurable universal I/Os.

Configuration is performed on a PC using SICK Safety Designer software over the USB 2.0 Mini-USB diagnostics interface. Functions such as restart interlock, external device monitoring, multiple sampling and monitoring case switching are configured in that tool. The integrated configuration memory helps when replacing a sensor, because settings can be transferred rather than rebuilt from scratch.

Integration Note: wiring the OSSDs and universal I/Os into a plant network or safety controller may require an external gateway or connection module. Confirm the correct cables and gateways for your application with the supplier before commissioning.

Maintenance and Reliability in Demanding Environments

Reliability starts with the optical window. Dust, oil mist and coolant residue reduce the detectable remission range, which is specified from 1.8% to several 1000%. A scheduled inspection of the front screen, using a soft cloth and a suitable cleaning agent for the window material, keeps the field boundaries stable.

During each inspection, check the M12 connector for tightness and the cable for mechanical damage. Verify that the graphic colour display and LEDs show the expected state. Because the safe state in the event of a fault places at least one OSSD in the OFF state, any fault is visible to the connected safety controller immediately.

The scanner is rated for vibration class 5M1 and shock class 5M1, and it meets EMC standards IEC 61496-1, IEC 61000-6-2 and IEC 61000-6-4. These ratings support dependable operation near drives and welding equipment. The mission time of 20 years gives maintenance planning a clear horizon for replacement budgeting.

Applications for This unit

Indoor applications suit this model best. Typical uses include protecting access points to robot cells, safeguarding palletising stations and monitoring hazardous areas around automated conveyors. The 275° scanning angle allows one sensor to cover a corner or an open approach where a light curtain would need several pairs.

With 8 fields and 2 monitoring cases, engineers can define different protected zones for setup mode and production mode. Contour detection as a reference helps detect sensor displacement, which is valuable on movable machine frames. In oil and gas support facilities, the scanner can guard maintenance bays and test stands where operators approach rotating or powered equipment.

Frequently Asked Questions

What is the protective field range of This unit?

The SICK unit provides a protective field range of 4 m and a warning field range of 40 m, with a 275° scanning angle.

What supply voltage does This unit require?

The scanner operates on 24 V DC with an input range of 16.8 V DC to 30 V DC. Typical power consumption is 7 W without output load, and protection class is III.

Can This unit be used outdoors?

No. The manufacturer specifies this model for indoor application. Operating temperature is −10 °C to +50 °C, and the IP65 rating applies to indoor industrial environments.

How is This unit configured and diagnosed?

Configuration uses a PC with SICK Safety Designer software through the USB 2.0 Mini-USB interface. On the machine, the graphic colour display and LEDs provide status and diagnostic information.

What safety level does This unit achieve?

The scanner is Type 3 per IEC 61496, SIL 2 per IEC 61508, Category 3 per EN ISO 13849 and PL d, with a PFHD of 8.0 × 10⁻⁸ and a mission time of 20 years.

Contact PetroPartsOnline for parts suited to your application's requirements.

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