6MM Hollow Shaft Rotary Encoder - 1000 PPR, 5-24VDC, NPN Incremental

Specifications

• Operating Voltage: 5V to 24V DC

• Resolution: 1000 Pulses Per Revolution (PPR)

• Shaft Diameter: 6mm (Hollow Shaft Type)

• Output Mode: NPN Open Collector Output

• Phases: AB two-phase incremental

• Maximum Speed: 6000 r/min

• Outer Diameter: 38mm

• Supply Current: 80mA

Key Applications and Projects

• High-Precision CNC Machining: Monitoring tool-head position with 1000 PPR resolution for ultra-fine machining tolerances.

• Robotic Arm Articulation: Providing real-time angular feedback for high-speed pick-and-place robotic systems.

• Automated Packaging Lines: Synchronizing multiple conveyor belts to ensure precise timing during high-volume production cycles.

Package Includes:

• 1 x 6MM Hollow Shaft 1000 PPR Incremental Rotary Encoder

FREQUENTLY ASKED QUESTIONS (FAQ) 

• What is the benefit of a hollow shaft?
  The hollow-shaft design allows the encoder to fit directly over a compatible rotating shaft, reducing the need for a separate coupling and helping create a compact installation.
• Can I use this encoder with an Arduino?
  Yes. Its 5–24 V DC supply rating supports a range of control systems, but the Arduino interface must be wired correctly. The NPN open-collector output requires a suitable pull-up circuit, and the signal voltage must remain within the microcontroller's input limits.
• Does this encoder measure absolute position?
  No. It is an incremental encoder that tracks relative rotation by generating pulses. A homing sensor or reference position is needed to establish a known position after startup.
• How can I detect clockwise and counter-clockwise rotation?
  The encoder provides A and B phase signals with a relative timing offset. A controller can determine the direction of rotation by detecting which signal leads the other.
• What does NPN open-collector output mean?
  An NPN open-collector output switches the signal toward ground when active. A suitable external pull-up resistor or compatible input circuit is generally required to produce a defined high signal.
• What is the maximum output frequency?
  At 1000 PPR and 6000 RPM, the nominal pulse frequency is 100 kHz per channel, assuming the stated PPR definition. The actual usable frequency also depends on the encoder's response limit and the receiving controller.
• Does the encoder include a shielded cable?
  The product listing specifies an integrated shielded cable. Cable shielding can help reduce electromagnetic interference, particularly in electrically noisy installation