In long-term industrial operation, absolute encoders are often selected as fixed reference components within the control system. For machinery originally equipped with AG661 23 – 466123000000, a dedicated replacement encoder can be provided to maintain this reference role without altering existing mechanical designs or control logic.
The replacement unit operates as a multi-turn absolute encoder using an SSI interface with Gray code output, ensuring compatibility with established PLC and motion controller settings. Position feedback is resolved at 4096 counts per revolution combined with 4096 multi-turn revolutions, allowing precise absolute positioning across extended motion ranges and repeated cycles. The encoder functions on a DC 10–32 V supply and supports SSI clock frequencies up to 300 kHz, enabling stable and deterministic data transmission. Mechanically, the design supports continuous operation at shaft speeds up to 8000 rpm and incorporates structural reinforcement to withstand 100 g shock and 20 g vibration. The sealed IP67 housing provides reliable protection against dust and moisture in demanding industrial environments.


As a result, the AG661 23 – 466123000000 replacement encoder is well suited for automated storage systems, lifting and hoisting equipment, shuttle cars, and other applications where dependable absolute position information is essential for safe and accurate motion control.
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 |

