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2TLA020070R3700 ABB RSA 698 Multi-Turn Absolute Safety Encoder
ABB 2TLA020070R3700 RSA 698 is a 25-bit multi-turn absolute safety encoder with a 10 mm solid shaft and M12 5-pole connector for safe position and speed determination with ABB Pluto safety controllers.
£1,058.92
Why Choose the ABB 2TLA020070R3700 RSA 698 Multi-Turn Absolute Encoder?
The ABB 2TLA020070R3700, 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 20-070-37 and classified within the Safety PLC product group, it is specifically designed for integration with ABB Pluto programmable safety controllers.
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 revolutions. This allows the encoder to retain an absolute rotational position across multiple shaft revolutions, making it particularly suitable for machinery where both angular position and the number of completed turns must be monitored.
This version features a 10 mm solid shaft and an M12 5-pole connector. With a 9–36 V DC operating-voltage range, IP67 enclosure protection and integration with the Pluto Safety Bus, the RSA 698 provides a rugged solution for safety-related motion monitoring and can be used with Pluto systems for applications up to PL e / SIL 3.
Key Advantages
- Multi-turn absolute safety encoder for precise machine position and speed monitoring.
- 25-bit total resolution combines detailed angular measurement with multi-revolution tracking.
- 8192 positions per revolution with measurement across 4096 revolutions.
- Designed for direct integration with ABB Pluto Safety PLC systems.
- Supports safety applications up to PL e / SIL 3 when correctly integrated into the safety system.
- IP67 enclosure protection supports use in demanding industrial environments.
Key Features
- ABB RSA 698 multi-turn absolute encoder.
- 25-bit total absolute resolution.
- 13-bit / 8192 positions per revolution single-turn resolution.
- 12-bit / 4096 revolutions multi-turn measurement range.
- 10 mm solid round shaft.
- M12 5-pole connector.
- 9–36 V DC operating voltage.
- Binary code with programmable resolution and zero position.
- Pluto Safety Bus communication with 10 kbit/s–1 Mbit/s databus speed.
- Polarity and short-circuit protection.
- Anodised aluminium enclosure for industrial environments.
Reliable Multi-Turn Position and Speed Monitoring
Multi-turn absolute encoders determine both the angular position of a shaft within a revolution and its position across multiple complete revolutions. Unlike incremental measurement systems, the RSA 698 supplies absolute position information, making it well suited to machinery where reliable knowledge of rotational position is required as part of a safety-related control system.
Together with an ABB Pluto safety controller, the RSA 698 can be used for safe position and speed determination. Programming is performed using ready-made function blocks in Pluto Manager, allowing machine builders and automation engineers to integrate encoder information into machine safeguarding functions while maintaining a structured safety-control architecture.
Typical Applications
- Safe multi-turn position monitoring of industrial machinery.
- Safe rotational speed determination.
- ABB Pluto Safety PLC installations.
- Machine tools and automated motion systems.
- Material handling, lifting and positioning machinery.
- Automated production and assembly equipment.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Product group | Safety PLC | |
| Order code | 2TLA020070R3700 | |
| Reference | 20-070-37 | |
| Product type | Multi-turn absolute safety encoder | |
| Function | Multi-turn | |
| Encoder technology | Absolute | |
| Total resolution | 25 bit | |
| Single-turn resolution | 13 bit / 8192 positions per revolution | |
| Multi-turn resolution | 12 bit / 4096 revolutions | |
| Accuracy | ±1 LSB | |
| Shaft type | Solid round shaft | |
| Shaft diameter | 10 mm | |
| Connection | M12 5-pole connector | |
| Operating voltage | 9–36 V DC | |
| Current consumption | 50 mA at 24 V DC | |
| Maximum current consumption | 100 mA | |
| Databus speed | 10 kbit/s–1 Mbit/s | |
| Code type | Binary | |
| Programmable functions | Resolution and zero position | |
| Polarity protection | Yes | |
| Short-circuit 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 | |
| Transport and storage temperature | -30 to +70 °C | |
| Vibration resistance | <100 m/s², 55–2000 Hz, according to IEC 60068-2-6 | |
| Shock resistance | <2000 m/s², 6 ms, according to IEC 60068-2-27 | |
| Enclosure material | Aluminium | |
| Surface treatment | Anodised | |
| Dimensions (L × H × W) | approx. 100 × 82 × 58 mm | |
| Weight | approx. 0.39–0.40 kg | |
| UPC | 7320500410875 |
Frequently Asked Questions
What is the ABB 2TLA020070R3700?
The ABB 2TLA020070R3700 is the RSA 698 multi-turn absolute safety encoder, designed for safe position and speed determination in conjunction with ABB Pluto safety controllers.
What resolution does the RSA 698 provide?
The RSA 698 provides 25-bit total resolution, consisting of 13-bit resolution with 8192 positions per revolution and 12-bit multi-turn resolution covering 4096 revolutions.
What shaft and connector are fitted to the ABB 2TLA020070R3700?
This RSA 698 version has a 10 mm solid round shaft and an M12 5-pole connector.
What supply voltage does the RSA 698 require?
The encoder operates from a 9–36 V DC supply and has a current consumption of approximately 50 mA at 24 V DC.
Can the RSA 698 be used for safety-related position monitoring?
Yes. Together with an ABB Pluto safety controller, the RSA 698 can be used for safe position and speed determination and can support applications up to PL e / SIL 3 when the complete safety system is correctly designed and configured.
Trusted Safety Motion Monitoring
ABB RSA 698 multi-turn absolute safety encoders provide high-resolution rotational position information for Pluto-based machine-safety systems, combining multi-revolution measurement, robust industrial construction and dedicated safety-controller integration.
