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SROA13\SROA20 Series
Summary
Technical specifications
Application
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With high accuracy, compact size, and specially developed for small base motors, the SROA20/SROA13 ultra-small diameter encoders are ideal for industries such as servo, medical, and consumer electronics (3C).


Product characteristics

Repeatability < ±8 arc seconds;
RS485 interface, compatible with multiple communication protocols;
Bidirectional asynchronous serial communication, 17-bit per revolution;
Rigorous EMC testing to meet harsh electromagnetic environment conditions;
Suitable for motors with 14.5-30 base.

Product advantages

Optical principle for higher accuracy;
Outer diameter of 12.5mm, compact size;
Easy to install, custom-designed for small base motors.

Technical specifications
System
Resolution Single-turn: 17bit
Communication Specification RS485
Baud Rate 2.5Mbps
Signal Format Serial Communication Protocol
Electrical
Supply Voltage 5 V ± 5%
Main power supply current consumption (typical) 140mA
Differential Output Level High level≥3.5V; Low level≤1.7V
Insulation Resistance 50MΩ
Edge Change Time 100ns
Environment
EMC Features IEC61000-4
Operating Temperature -10℃~105℃
Humidity ≤90%(40℃/21d, based on EN60068-2-78); No Condensing
IP Rating —（Motor Rear Case Protection）
Shock Impact acceleration 980m/s2 ，11ms； 3 times per direction, total 18 times
Vibration The amplitude is 1.5mm between 10 ~ 55Hz; Acceleration of 98m/s2 between 55~2000 Hz ; 2 hours per axial (XYZ)
Specification
Ultra-small single-turn absolute rotary encode SROA13&SROA20series specification V3.2
3D Model
【整機】SROA20超小型光電編碼器(A00)
【整機】SROA13超小型光電編碼器(A00)
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