Descripción
The GOS38A02 incremental rotary encoder is designed for precision motion control in industrial automation applications. Featuring a compact 38mm diameter and semi-hollow shaft, it delivers accurate position and speed feedback with resolutions up to 10,000 pulses per revolution. Its robust IP65-rated construction guarantees reliable performance in harsh environments. Compatible with various PLCs and control systems, the GOS38A02 offers versatile output signals including open collector, push-pull, and line driver, ensuring seamless integration in conveyor, robotics, CNC, and packaging machines.
Características principales
- Incremental optical rotary encoder with high-resolution options from 100 to 10,000 PPR 
- Semi-hollow shaft design (typically 8mm diameter) for direct motor installation and easy coupling 
- IP65-rated housing protects against dust and water ingress for industrial durability 
- Wide DC input voltage range from 5 to 24V for flexible system compatibility 
- Multiple output signal types: open collector (NPN), complementary push-pull, and 5V line driver differential signals 
- Anti-interference circuitry for stable, noise-resistant signal output 
- Compact 38mm outer diameter facilitating integration in tight mechanical assemblies 
- Long cable options with protective rubber sleeves available 
Ventajas del producto
- High-resolution measurement enabling precise speed and position control 
- Semi-hollow shaft supports easier installation and shaft alignment 
- Robust IP65 protection increases encoder longevity in tough environments 
- Versatile outputs support a wide range of industrial control applications 
- Enhanced signal noise immunity ensures consistent feedback in electrically noisy settings 
- Space-saving compact size suits applications with limited installation room 
Product model and meaning
| G | 0 | S | 38 | □ | A | 02 | 2000 | C | 3 | 2M | |||
| Categoría producto | Type of product | Forma de eje principal | Contorno de producto | Tamaño del eje principal, orificio del eje | Salida y formulario de sellado | Outline structure | Resolución | Formulario de salida | Señal de salida | Cable | |||
| G:incremental tipo | 0:megneto- electricity | S:eje macizo | 38:φ38mm | □:φ6mm | A:side outlet rubber | 02:2outline structure2 | 10,20,50,60, 100,200,360, 400,500,600, 800,1000, 1024,1200, 2000,2048, 2500,3000, 3600,5000 | C:salida de colector abierto F:salida complementaria T:salida push pull L:Salida de 5 V A:Salida de 24 V | 1:phase Asignal 2:señal de fase AB 3:fase Señal ABZ 4:fase Señal ABA/B/ 5:phase ABZA/B/Z/ signal | Por defecto 2m línea,Para non 2m, etiquetado es suficiente | 
Wiring table
| Color de la línea | Señal de salida C/F | – | Color de la línea | Señal de salida | 
| marrón | VCC | marrón | VCC | |
| azul | GND | |||
| azul | GND | |||
| negro | Una fase | |||
| negro | Una fase | blanco | Fase B | |
| naranja | Fase Z | |||
| blanco | Fase B | |||
| black red | Aphase | |||
| naranja | Fase Z | white red | Bphase | |
| orange red | Fase Z | |||
| escudo | F -G | |||
| escudo | F -G | 
Output phase difference
salida complementaria/colector NPN salida en circuito abierto/salida push pull

salida long line drive


Mechanical drawings(mm)


Escenarios de aplicación
- Industrial motor speed and position measurement for automation 
- CNC machinery for precision tool positioning and rotation feedback 
- Conveyor belt speed and position control in packaging lines 
- Robotics requiring accurate joint and axis feedback 
- Printing machines for synchronizing roller and sheet movements 
- Automated assembly lines demanding high reliability rotary feedback 
Instalación y mantenimiento
- Verify shaft diameter and match with the semi-hollow 8mm encoder shaft for secure fitting. 
- Align shafts carefully to prevent mechanical stress and ensure accurate feedback. Flexible coupling is recommended. 
- Secure the encoder firmly with mounting screws to prevent vibrations or rotational movement. 
- Connect the power supply between 5 to 24V DC, and wire output signals according to required interface (refer to wiring diagrams). 
- Use shielded, twisted-pair cables wherever possible to minimize electromagnetic interference. 
- Keep the encoder housing clean and free of dust buildup. 
- Periodically inspect electrical connections for tightness and signs of wear. 
- Replace the encoder promptly if signal integrity degrades or mechanical damage occurs. 
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