27mm Miniature Absolute Rotary Encoder Single turn multi-turn with RS485 Modbus RTU
$60.44 – $205.41
Key features
- Power-off Memory: Retains position information even after power loss, promoting reliability.
- Absolute Multi-Turn: Provides precise position data across multiple turns, essential for complex applications.
- Mechanical Gear Count: Uses mechanical gears for turn counting, eliminating the requirement for an internal battery.
- High Resolution: Achieves up to 17-bit resolution with an impressive 0.07° accuracy.
- Compact Design: With a minimum outer diameter of just 27mm, this industrial-grade encoder is engineered for durability in tough environments.
- Data Interfaces: Supports seamless integration and data exchange through the 27mm Miniature interface.
- Wide Voltage Compatibility: Designed to operate under various voltage conditions, this encoder has successfully passed rigorous EMC testing, ensuring strong anti-interference capabilities.
- User-Friendly Configuration: Parameter settings can be easily managed through communication protocols and upper computer software, offering intuitive setup.
- Flexible Operation Modes: Includes both query and automatic return modes for real-time position and speed feedback. Programmable features encompass baud rate, position setting, counting direction, and speed feedback.
- Compact and Cost-Effective: Optimized for space-saving designs, delivering high performance at competitive pricing.
- Rugged and Reliable: Magnetic sensors withstand harsh 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 | max of 5000 RPM |
Multiturn Turns | Singleturn, 16 turns, 24turns, 32turns,50turns,64turns, 100turns, 400 turns, 600 turns, 1800turns, 5400turns, 10800turns, 21600 turns | Resolution | 1024(10bit), 4096(12bit), 32768(15bit), 65536(16bit), 131072 (17bit) per 360° |
Interface | RS232/RS485 CAN SSI | Communicate Protocol | Modbus RTU CANbus/CANopen SSI |
Electrical life | > 100000 h | Supply Voltage | 5v~24V |
Baud rate | RS232/RS485Modbus RTU: 9600~115200(Default 9600) CANbus/CANopen: 100K~1M(Default 500K) SSI:100K-5M | Kernel refresh cycle | < 50uS |
Current consumption | max. 70 mA | Power consumption | max. 0.38 W |
Shaft Diameter | 6mm | 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 and Multi-turn Absolute Rotary Encoder for Getting Precision Reading in Every Revolution
The 27mm Miniature Singleturn and Multiturn Absolute Rotary Encoder is designed to deliver precise and reliable performance in compact environments. Notably, it features mechanical gears and operates without an internal battery. A standout capability is its power-off memory, which retains position data across both single and multiple turns, ensuring no need for recalibration after a power loss.
Industry Applications
The 27mm Miniature Singleturn and Multiturn Absolute Rotary Encoder measures absolute position in various industries and equipment, including automated guided vehicle systems (AGV systems), industrial trucks, commercial vehicles, packaging machines, logistics applications, agricultural and forestry machines, construction and mining equipment, 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 6mm solid shaft (Above)
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