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).
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.
Optical principle for higher accuracy;
Outer diameter of 12.5mm, compact size;
Easy to install, custom-designed for small base motors.
| Resolution | Single-turn: 17bit |
| Communication Specification | RS485 |
| Baud Rate | 2.5Mbps |
| Signal Format | Serial Communication Protocol |
| 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 |
| 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) |