The Nidec Nemicon OVW2-25-2MD is a shaft-type incremental rotary encoder delivering 2500 pulses per revolution for precise angular measurement and position feedback in industrial automation. This compact unit measures 38 mm in body diameter with a practical length of 30 mm, fitting into space-constrained installations. Line driver output with AB 90° phase difference and zero signal output enable reliable feedback in demanding control loops.
Technical Specifications
Resolution & Output
• 2500 pulses per revolution (PPR)
• Line driver output with AB 90° phase difference
• Zero signal output included
• Maximum output current: 20 mA
• Rise and fall time: 200 ns maximum
Electrical
• Power supply: DC 4.5 V to 13.2 V or DC 10.8 V to 26.4 V
• Low power C-MOS output available
Mechanical
• Solid shaft, 12 mm diameter (10 φ 6h7)
• Body diameter: 38 mm
• Practical length: 30 mm
• Mounting: M3 screws on 28 mm or 30 mm PCD
• Mounting method: Rigid support with coaxial shaft alignment; flexible coupling recommended for parallel alignment within specified center offset tolerances
– Key Features
• Compact construction with reduced profile for tight spaces
• Dual voltage supply options accommodate various system requirements
• Fast rise/fall time (200 ns max) ensures signal integrity in high-speed applications
• Zero signal output provides absolute reference point for multi-turn position tracking
• Line driver output delivers noise immunity in electrically noisy environments
– Typical Applications
• Industrial automation position feedback
• Machine tool servo control
• Motion control systems requiring absolute zero reference
• Encoder feedback in confined mounting spaces
– Compatibility & Integration
The encoder accepts flexible coupling for shaft connection and requires M3 fasteners for mounting. Dual supply voltage options (4.5–13.2 V or 10.8–26.4 V) allow integration into 5 V and 24 V control systems. Line driver output supports cable runs with reduced susceptibility to EMI.
