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2TLA020071R7800 ABB RSA 698 Multi-Turn Absolute Safety Encoder 6 mm Shaft
ABB 2TLA020071R7800 RSA 698 is a 25-bit multi-turn absolute safety encoder with a 6 mm solid shaft, M12 connectivity and CANPluto interface for industrial position and speed monitoring with ABB Pluto safety systems.
£1,058.92
Why Choose the ABB 2TLA020071R7800 RSA 698 Multi-Turn Absolute Encoder?
The ABB 2TLA020071R7800, designated RSA 698, is a robust multi-turn absolute safety encoder designed for safe position and speed determination in industrial machinery. Identified by ABB reference 20-071-78 and classified within the Safety PLC product group, this version combines RSA 698 multi-turn measurement technology with a compact 6 mm solid shaft.
The RSA 698 provides a 25-bit total resolution, comprising 13-bit single-turn resolution with 8192 positions per revolution and 12-bit multi-turn resolution covering 4096 absolute revolutions. This enables the safety control system to determine both the angular position within an individual revolution and the absolute position across multiple shaft rotations.
Designed for integration with ABB Pluto programmable safety controllers, the 2TLA020071R7800 communicates through the CANPluto interface and features M12 connectivity. Its 9–36 V DC supply range, IP67 enclosure protection and rugged anodised aluminium construction make it suitable for demanding industrial machinery where dependable position and speed monitoring are required.
Key Advantages
- Multi-turn absolute safety encoder for machine position and speed monitoring.
- 6 mm solid shaft configuration for compatible mechanical installations.
- 25-bit total resolution for precise absolute position measurement.
- 8192 positions per revolution across 4096 absolute revolutions.
- Designed for integration with ABB Pluto Safety PLC systems.
- IP67 enclosure protection supports operation in demanding industrial environments.
Key Features
- ABB RSA 698 multi-turn absolute encoder.
- 6 mm solid round shaft.
- 25-bit total absolute resolution.
- 13-bit / 8192 positions per revolution single-turn resolution.
- 12-bit / 4096 revolutions multi-turn resolution.
- M12 connector interface.
- CANPluto communication interface.
- 9–36 V DC operating voltage.
- Programmable scaling, preset and code-sequence functions.
- Polarity-protected power supply and robust industrial construction.
Reliable Multi-Turn Position and Speed Monitoring
Multi-turn absolute encoders provide an absolute measurement of both the shaft angle and the number of completed revolutions. The ABB RSA 698 therefore allows machinery to retain meaningful position information across multiple rotations, making it suitable for applications where the control system must monitor more than a single 360-degree shaft movement.
When integrated with an ABB Pluto safety controller, the RSA 698 provides position and speed information through the CANPluto interface. Its high absolute resolution, programmable functions and rugged mechanical construction make the 2TLA020071R7800 particularly useful for industrial motion and positioning applications requiring a compact 6 mm shaft encoder.
Typical Applications
- Safe multi-turn position monitoring of industrial machinery.
- Safe rotational speed monitoring.
- ABB Pluto Safety PLC installations.
- Machine tools and automated motion systems.
- Material handling and positioning equipment.
- Automated production and assembly machinery.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Product group | Safety PLC | |
| Order code | 2TLA020071R7800 | |
| Reference | 20-071-78 | |
| Product type | Multi-turn absolute safety encoder | |
| Encoder technology | Absolute, multi-turn | |
| Interface | CANPluto | |
| Total resolution | 25 bit | |
| Single-turn resolution | 13 bit / 8192 positions per revolution | |
| Multi-turn resolution | 12 bit / 4096 absolute revolutions | |
| Accuracy | ±½ LSB | |
| Shaft type | Solid round shaft | |
| Shaft diameter | 6 mm | |
| Connection | M12 connector | |
| Operating voltage | 9–36 V DC | |
| Current consumption | 90 mA at 24 V DC | |
| Maximum current consumption | 150 mA at 24 V DC | |
| Databus speed | Up to 1 Mbit/s | |
| Default databus speed | 125 kbit/s | |
| Code type | Binary | |
| Programmable functions | Scaling, preset and code sequence | |
| Polarity protection | Yes | |
| Protection rating | IP67 according to IEC 60529 | |
| Protection at shaft inlet | IP66 according to IEC 60529 | |
| Operating ambient temperature | -40 to +70 °C | |
| Storage temperature | -30 to +70 °C | |
| Vibration resistance | <100 m/s² at 55–2000 Hz according to IEC 60068-2-6 | |
| Shock resistance | <2000 m/s² at 6 ms according to IEC 60068-2-27 | |
| Enclosure material | Aluminium | |
| Surface treatment | Anodised | |
| Overall dimensions | approx. 82 × 58 × 58 mm | |
| Weight | approx. 0.39–0.40 kg |
Frequently Asked Questions
What is the ABB 2TLA020071R7800?
The ABB 2TLA020071R7800 is an RSA 698 multi-turn absolute safety encoder with a 6 mm solid shaft, designed for position and speed monitoring with compatible ABB Pluto safety systems.
What resolution does the RSA 698 provide?
The encoder provides 25-bit total resolution, comprising 13-bit single-turn resolution with 8192 positions per revolution and 12-bit multi-turn resolution covering 4096 absolute revolutions.
What shaft size does the ABB 2TLA020071R7800 have?
This specific RSA 698 version has a 6 mm solid round shaft. It should not be confused with the separate RSA 698 version equipped with a 10 mm shaft.
What supply voltage does the RSA 698 require?
The encoder operates from a 9–36 V DC supply and uses the CANPluto interface for communication with the safety-control system.
What protection rating does the ABB RSA 698 have?
The encoder enclosure is rated IP67 according to IEC 60529, with IP66 protection at the shaft inlet, supporting use in demanding industrial environments.
Trusted Safety Motion Monitoring
ABB RSA 698 multi-turn absolute safety encoders provide high-resolution position information for Pluto-based machine-safety systems, combining multi-revolution measurement, rugged industrial construction and dedicated CANPluto communication.
