In many industrial installations, the encoder is not treated as a standalone component but as part of a tightly integrated motion system. For equipment originally using AG661 20 – 466120000000, a customized replacement solution can be provided that respects this integration logic, allowing the encoder to be exchanged without modifying control parameters or mechanical assemblies.
The replacement unit is engineered as a multi-turn absolute encoder with SSI Gray-code output, maintaining full compatibility with existing PLC and drive configurations. Absolute position information is resolved at 4096 counts per revolution combined with 4096 multi-turn revolutions, ensuring consistent position tracking even after power interruptions. Operating on a wide DC 10–32 V supply, the encoder supports stable data transmission at SSI clock rates up to 300 kHz, meeting the response requirements of automated motion systems. From a mechanical perspective, the design supports shaft speeds up to 8000 rpm and is reinforced to tolerate 100 g shock and 20 g vibration, making it suitable for dynamic or mechanically stressed applications. An IP67-rated housing further ensures reliable operation in dusty or humid industrial environments.


As a result, the AG661 20 – 466120000000 replacement encoder can be confidently applied in material handling systems, lifting mechanisms, transfer cars, and other machinery where accurate and continuous absolute position feedback is essential for stable operation.
Technical data
| Parameter | Value | Unit |
| Max. permissible speed | 6000 | rpm^-1 |
| Permissible angular acceleration of rotor | 10^5 | rad \cdot s^-2 |
| Moment of inertia of rotor | 45 | gcm^2 |
| Max. starting torque at 25°C | 1 | Ncm |
| Max. load on shaft | ||
| - With standard shaft | axial: 50 / radial: 200 | N |
| - With expanding shaft | axial: 10 / radial: 20 | N |
| Service life of ball bearings (at 10 N axial/radial load @ 3000 $rpm^{-1}$) | 25000 | h |
| Vibration, sinusoidal 100 Hz | 100 | ms^-2 |
| Radial impacts on the flange within 10 ms | 300 | ms^-2 |
| Protection | See option concerned | - |
| Relative humidity | 95 | % |
| Temperature range | See option concerned | - |
| Weight | approx. 0.4 | kg |
| Parameter | Value | Unit |
| Max. step frequency | 100 | kHz |
| Supply voltage | 10 ... 32 | V |
| Max. power consumption | 3.7 | W |
| Angular error | 10^-3 | rad |
| Pick-up code | Gray single-step | - |
| Transmitters | GaAlAs diodes | - |
| MTBF | 10^5 | h |

