HEIDENHAIN RCN 729 Absolute Angle Encoder
The HEIDENHAIN RCN 729 is an absolute angle encoder with integral bearing, integrated stator coupling and EnDat 2.2 interface, for rotary tables and swivel axes. Ask AMI about repair, replacement or sourcing for your exact unit; availability and the right replacement path are confirmed before quoting. This page does not claim stock. Legacy model: it is no longer listed in HEIDENHAIN's current angle encoder catalog.
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Representative RCN 700 / RCN 800 series image.
Technical data
| Model | RCN 729 |
|---|---|
| Type | Absolute angle encoder with integral bearing and integrated stator coupling |
| Interface | EnDat 2.2 (ordering designation EnDat 22) or EnDat 2.2 with 1 Vpp incremental signals (EnDat 02) |
| Positions per revolution | 536,870,912 (29 bits) |
| Clock frequency | Up to 8 MHz (EnDat 22); up to 2 MHz (EnDat 02) |
| Incremental signals | 1 Vpp, 32,768 lines, cutoff frequency 180 kHz or higher (EnDat 02 version only) |
| Electrical speed | Up to 300 rpm for continuous position value |
| Power supply | 3.6 to 5.25 V, max. 350 mA without load |
| Electrical connection | Cable 1 m with M12 coupling; max. cable length 150 m |
| System accuracy | ±2 arc seconds (RCN 72x series) |
| Recommended measuring step for position capture | 0.0001° |
| Shaft | Hollow through shaft, diameter 60 mm or 100 mm (two housing sizes) |
| Mechanical speed | Up to 1000 rpm |
| Starting torque | Up to 0.5 Nm (60 mm) or 1.5 Nm (100 mm) at 20 °C |
| Moment of inertia of rotor | 1.3 x 10-3 kgm2 (60 mm); 3.3 x 10-3 kgm2 (100 mm) |
| Permissible axial motion of measured shaft | ±0.1 mm |
| Vibration / shock | 100 m/s2 (55 to 2000 Hz) / 1000 m/s2 (6 ms) |
| Operating temperature | 0 to 50 °C (32 to 122 °F) |
| Protection | IP 64 (IEC 60529) |
| Weight | Approx. 2.8 kg (60 mm); approx. 2.6 kg (100 mm), per catalog |
Specifications from the manufacturer's July 2005 angle encoder catalog. Confirm the full ID number, interface, shaft diameter and connection from your encoder's nameplate before ordering; send the nameplate and we will confirm fit.
Catalog pages: RCN 700 / RCN 800 and RON 786 / RON 886 / RPN 886 specifications (PDF, 6 pages).