25mm Miniature Singleturn Absolute Rotary Encoder RS485 RS232 Modbus RTU
$46.40 – $104.70
Key features
- Power-off Memory: Retains position information even after power loss, ensuring operational continuity.
- Absolute Singleturn: Provides accurate position data throughout multiple turns, maximizing versatility.
- Mechanical Gear Count: Utilizes mechanical gears for counting turns, eliminating the necessity for an internal battery and enhancing reliability.
- High Resolution: Offers up to 17-bit resolution with an impressive 0.07° accuracy for precise measurements.
- Compact Design: With a minimum outer diameter of just 25mm, this industrial-grade encoder is designed to withstand harsh environments while saving space.
- Data Interfaces: Specifically designed for seamless integration and data exchange with the 25mm Miniature specifications.
- Wide Voltage Compatibility: Engineered to operate under a variety of voltage conditions and has undergone stringent EMC testing, ensuring robust anti-interference capabilities.
- User-Friendly Configuration: Parameter settings can be easily managed through communication protocols and upper computer software, facilitating intuitive and straightforward setup.
- Flexible Operation Modes: Supports both query and automatic return modes for real-time position and speed feedback. Programmable features include baud rate, position settings, counting direction, and speed feedback.
- Compact and Cost-Effective: A space-saving design that provides high performance at a competitive price point.
- Rugged and Reliable: Magnetic sensors are built to endure demanding environmental conditions.
Encoder Technology | Absolute Magnetic Encoder | Power-off memory | Retains position data even after power loss |
Memory Range | Multiturn within singleturn and 0~360°*N turns | Maximum mechanical speed | Single-turn max of 5000 RPM |
Turns | Singleturn | Resolution | 1024(10bit), 4096(12bit), 16384(14bit) 32768(15bit), 65536(16bit), 131072 (17bit) per 360° |
Interface | RS485 Modbus RTU RS232 Modbus RTU CANbus CANopen TTL | Kernel refresh cycle | < 50uS |
Electrical life | > 100000 h | Supply Voltage | 5v~24V |
Current consumption | max. 70 mA | Power consumption | max. 0.38 W |
Shaft Diameter | 4mm | Flange material | Aluminum |
Shaft Type | Solid, Blind Hollow | Shaft material | Stainless steel |
Protection Rating | IP54 | Temperature | -40 °C up to +85 °C |
Connection Type | Male Connect or Cable | Flange | Clamping flange, Blind hollow shaft |
Shaft load axial / radial | 20 N/80 N | Weight | 86～200g |
Single-turn accuracy | < ±0.025° | Repeat accuracy | < ±0.05° |
Single-turn Absolute Rotary Encoder for Getting Precision Reading in Every Revolution
The 25mm Miniature Single-Turn Absolute Rotary Encoder features mechanical gears and operates without an internal battery. Its standout feature is the power-off memory, which maintains position data across both single turn during power loss. This capability ensures precise and reliable performance without the need for recalibration.
Industry Applications
The 25mm Miniature Single-Turn Absolute Rotary Encoder is ideal for measuring the absolute position in various industries, machines, and equipment, including automated guided vehicle systems (AGV systems), industrial trucks, commercial vehicles, packaging machines, logistics applications, agricultural and forestry machines, construction and mining machinery, as well as special and municipal vehicles.
FAQ
How to Calculate Angles
For a single-turn 4096-count encoder:
One full rotation of the encoder equals 360°, so each step represents 360° / 4096 ≈ 0.088°. If the difference between two encoder readings is 1000 steps, the corresponding angle difference is 360° / 4096 * 1000 ≈ 87.899°.
How to Calculate Speed
For a single-turn 2000-count encoder:
One full rotation of the encoder equals 360°, and it outputs 2000 pulses. If the encoder outputs 1000 pulses in 10 ms, the corresponding speed is calculated as 1000 / 2000 * 1000 * 60 / 10^3 ≈ 3000 RPM.
Additionally, we also support directly reading the encoder’s speed value.
How to Calculate Position Value for a Multi-Turn Encoder
Assuming the encoder resolution is 12-bit multi-turn / 13-bit single-turn, and the encoder outputs a current position value of 16300:
The current number of turns is 16300 / 8192 = 19 (rounded down, using INT or TRUNC function in Excel).
The single-turn value is 16300 – 19 * 8192 = 7352.
Drawing 4mm solid shaft (Above)
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