Pro-Range 1000 PPR AB 2-Phase Optical Rotary Encoder with 1.5m Cable & Pull-up Resistors

This encoder provides 1000 Pulses Per Revolution (PPR), meaning its optical disk has 1000 slots. Because it has two output channels (A and B) in quadrature, a decoder can detect four state changes per pulse cycle, resulting in 4000 Counts Per Revolution (CPR). CPR offers higher resolution for precise position tracking.

The encoder has open-collector outputs. Connect one 4.7kΩ resistor between the VCC line (Red) and each output phase line (White for Phase A, Green for Phase B). This pulls the signal high when the output transistor is off, providing clean logic levels (0V/VCC) to your microcontroller or PLC input. The resistors also protect the output stage from damage.

The unit includes a 1.5-meter shielded cable. For longer runs, use high-quality shielded cable and ensure the shield (Golden wire) is properly grounded at the controller end to minimize noise. Signal integrity depends on environmental electrical noise; for critical applications, keep extensions as short as possible and consider using a line driver or signal conditioner.

Yes, but careful configuration is required. While the encoder's operating voltage range is 5-24V DC, the open-collector outputs can be pulled up to 3.3V. Power the encoder's VCC (Red) with a voltage within its 5-24V range, but connect the pull-up resistors for Phase A and B to your microcontroller's 3.3V rail. Ensure the logic high level (3.3V) is correctly recognized by your controller.

Use the provided M3 screws to secure the encoder body via its mounting holes. The 6mm D-shaped shaft must be coupled to the driving shaft using a flexible or rigid coupling that compensates for minor axial and radial misalignment. Avoid imposing excessive side load on the encoder shaft, as this can reduce bearing life and measurement accuracy.