Pro-Range 3806-OPTI-100-AB-OC 100 PPR 2-Phase Optical Rotary Encoder - IP52, 1.5m Cable

This encoder has 100 Pulses Per Revolution (PPR), referring to the physical marks on its internal disc. Because it outputs two channels (A and B) in quadrature, each pulse generates four distinct state changes, resulting in 400 Counts Per Revolution (CPR). You must use a quadrature decoder (in hardware or software) to interpret these four counts per pulse for maximum resolution.

Connect the Red wire to your DC supply (5-24V), Black to ground, and the Golden shield wire to earth ground for EMI protection. The White (Phase A) and Green (Phase B) open-collector outputs must each be connected to your logic input pin via a pull-up resistor (4.7kΩ included) tied to your microcontroller's logic voltage (e.g., 3.3V or 5V). This configuration provides a clean digital signal.

The encoder is rated for a maximum mechanical speed of 5000 RPM. At 100 PPR, this corresponds to a maximum output frequency of approximately 8.33 kHz (5000 RPM * 100 PPR / 60 seconds). Ensure your counting interface (microcontroller interrupt routine or dedicated counter IC) can process this frequency to avoid missing counts.

Yes, but it is critical to maintain signal integrity. Use a shielded cable of the same or better specification for the extension. Solder connections securely and maintain the shielding continuity by connecting the shield/drain wires together. For long runs in high-noise environments, consider using a differential line driver module to convert the signals to a more robust format like RS-422.

The IP52 rating provides basic protection against limited dust ingress (IP5X) and water dripping from a 15° angle (IPX2). It is suitable for indoor industrial environments with light dust or occasional condensation but is not waterproof or submersible. For washdown or outdoor applications, an encoder with a higher IP rating (e.g., IP67) is required.