The Yokogawa DM1B-075G DD is a High-Resolution, Incremental Hollow Shaft Encoder from Yokogawa's "Flexcoder" series.<br />
This model is designed as a robust and cost-effective solution for measuring speed and relative position in industrial applications. Its key feature is the hollow shaft (or "through-bore") design, which allows for easy installation over motor shafts or other equipment, simplifying alignment and reducing mounting hardware.
Key Technical Specifications
Parameter Specification
Type Incremental Rotary Encoder
Output Signals Quadrature Channels (A, /A, B, /B) and Index Channel (Z, /Z)
Output Circuit Line Driver (Differential, RS-422)
Resolution High Resolution (The exact value must be confirmed by datasheet. Typical values for this grade are 2048 PPR, 2500 PPR, or higher).
Supply Voltage 5 VDC ±5%
Max. Frequency Response Typically 300 kHz (or higher, depending on the exact model)
Max. Rotation Speed Typically 6000 RPM
Shaft Type Hollow Shaft (Through-Bore)
Bore Diameter 75 mm
Phase Difference (A vs B) 90° ±45°
Rise/Fall Time ≤ 1 µs (typical for Line Driver output)
Protection Rating Typically IP50 (Dust protected) or IP64 (Splash water proof). This must be confirmed by the datasheet.