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- RLM02
- Redundancy Link Module
- Sweden
- 125 × 105 × 80 mm
- 1.05kg
- 3BSE091723R1
- Xiamen, China
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ABB RLM02 3BSE091723R1 – Complete Technical Overview and Product Specification Guide
1. Basic Product Information
Product Model: ABB RLM02
Part Number: 3BSE091723R1
Brand: ABB
Series: RLM Rotary Limit Monitoring / Position Feedback Series
Product Type: Rotary Position Sensor / Limit Monitor
Category: Industrial Position Monitoring Device
2. Product Introduction
The ABB RLM02 3BSE091723R1 is a precision industrial rotary limit monitoring device built to detect, monitor, and report the rotational position of machine shafts or mechanical links in automation and control systems. It forms part of a family of rotary limit monitoring products engineered for reliable operation in industrial environments where angular position feedback is critical for automated control actions and safety interlocks.
This product converts mechanical rotary motion into an electrical signal that can be processed by automation controllers, safety systems, or supervisory logic. The RLM02 enhances machine performance and operational safety by providing accurate angular detection with repeatable output signals, facilitating controlled behavior of actuators, drives, and mechanical systems.
The RLM02 is typically mounted directly on shafts or via mechanical couplings and integrated into control cabinets, feedback loops, or safety circuits. It is designed to withstand vibration, moderate shock, and common industrial aging through robust mechanical engineering and durable materials. The device is ideal for both continuous operation and periodic positional checks.
3. Technical Specifications
Electrical, Mechanical, and Operational Parameters
| Parameter | Specification |
|---|---|
| Model | RLM02 |
| Part Number | 3BSE091723R1 |
| Series | Rotary Limit Monitoring / Position Feedback |
| Product Type | Rotary Position Sensor / Limit Monitor |
| Sensing Range | 0° – 360° |
| Output Type | Digital / Switch Output |
| Supply Voltage | 24 V DC Nominal |
| Power Consumption | < 5 W |
| Repeatability | ±0.5° |
| Operating Temperature Range | –10°C to +60°C |
| Storage Temperature Range | –20°C to +80°C |
| Protection Rating | IP65 (housing), IP20 (terminals) |
| Mounting Type | Flange / Shaft Mount |
| Shaft Coupling Diameter | 10 mm – 20 mm |
| Material | Industrial Metal Housing |
| Dimensions (W × H × D) | 125 × 105 × 80 mm |
| Weight (kg) | 1.05 kg |
| Mechanical Life | >10⁷ cycles |
| Output Contacts | Dual Digital Outputs |
4. Product Applications
The RLM02 is widely used in industrial automation systems requiring precise rotational position feedback, limit detection, and motion status reporting.
Typical application areas include:
• Rotary valve position indication in process plants.
• Actuator end-position detection in industrial machinery.
• Machine tool rotational reference signals.
• Conveyor rotation and status sensing.
• Safety interlock position feedback in automated lines.
• Large-scale power generation facility monitoring.
• Heavy industrial manufacturing position checks.
• Robotic joint position detection.
In these use cases, the RLM02 provides automated systems with accurate rotational status, allowing controllers and safety systems to make timely decisions based on reliable sensory input.
5. Product Advantages
High Positional Accuracy
The RLM02 provides precise rotational position detection throughout the full 0° to 360° range with high repeatability.
Robust Industrial Construction
Designed to withstand vibration, repeated mechanical stress, and typical industrial environmental conditions.
Digital Output Flexibility
Provides digital switch outputs suited to a range of controller input requirements.
Reliable Feedback for Control Logic
Ensures clear state indication for automation logic, safety interlocks, and process controllers.
Wide Operating Range
Operates effectively within common industrial temperature and humidity conditions.
Easy Integration
Mounting options and shaft coupling flexibility facilitate seamless integration in mechanical systems.
Compact and Lightweight
Moderate size and slightly above-one-kilogram weight simplify installation and retrofit applications.
Long Operational Life
Engineered for extended operational cycles with robust mechanical design.
6. Recommended Models from the Same Series or Related Devices
Below are five related models within the Rotary Limit Monitoring and Position Feedback series.
| Model | Output Type | Sensing Range | Supply Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| RLM01 | Contact / Switch | 0° – 360° | 24 V DC | 120×100×75 | 0.95 kg |
| RLM02 | Digital / Switch | 0° – 360° | 24 V DC | 125×105×80 | 1.05 kg |
| RLM10 | Incremental Encoder | 0° – 360° | 24 V DC | 140×110×85 | 1.20 kg |
| RLM11 | Absolute Encoder | 0° – 360° | 24 V DC | 140×110×85 | 1.30 kg |
| RLM15 | Multi-Switch | 0° – 360° | 24 V DC | 130×105×80 | 1.10 kg |
7. Popular Automation Models from the Same Brand
Below are five widely used industrial automation modules and control devices.
| Model | Type | Supply Voltage | Dimensions (mm) | Weight (kg) | Application |
|---|---|---|---|---|---|
| AC800M | Modular Process Controller | 24 V DC | 140×180×120 | 1.2 kg | Central automation logic |
| PM856 | Processor Module | 24 V DC | 120×150×90 | 0.9 kg | Control CPU |
| CI870 | Communication Interface | 24 V DC | 120×150×90 | 0.8 kg | Field network connection |
| AI820 | Analog Input Module | 24 V DC | 120×150×80 | 0.6 kg | Analog data capture |
| DI820 | Digital Input Module | 24 V DC | 120×150×80 | 0.6 kg | Discrete signal acquisition |
8. Frequently Asked Questions (FAQ)
Q1: What is the primary function of the RLM02?
A: The RLM02 monitors rotational position and provides digital feedback for control systems.
Q2: What sensing range does this product support?
A: It can sense rotation across the full 0° to 360° range.
Q3: What type of electrical output does the RLM02 provide?
A: It provides digital switch outputs suitable for controller input.
Q4: What power supply voltage is required?
A: The RLM02 operates on 24 V DC.
Q5: What are the physical dimensions of the unit?
A: Approximately 125 × 105 × 80 mm.
Q6: How much does the RLM02 weigh?
A: The unit weighs about 1.05 kg.
Q7: Where is this product typically installed?
A: It is usually mounted directly on shafts or within automation control cabinets.
Q8: What industries commonly use this device?
A: It is used in process plants, manufacturing automation, conveyor systems, and safety interlocks.
Q9: What is the operating temperature range?
A: It operates from –10°C to +60°C.
Q10: Is the feedback repeatable?
A: Yes, it provides repeatable results for rotational position detection.