ATM90-AXA12x12 SICK SSI ABSOLUTE ENCODERS
We provide ATM90-AXA12x12 encoder replacement solutions, the use of non-standard form for the production of alternative products, the application parameters of all 1:1. Perfect replacement of the prototype encoder, to solve the procurement and other challenges. The picture is the real photo of the replacement solution.


Safety-related parameters
| Parameter | Value | 
|---|---|
| MTTF (mean time to dangerous failure) | 150 years (EN ISO 13849-1) | 
Performance
| Parameter | Value | 
|---|---|
| Number of steps per revolution (max. resolution) | 4,096 (12 bit) | 
| Number of revolutions | 4.096 (12 bit) | 
| Max. resolution (number of steps per revolution x number of revolutions) | 12 bit x 12 bit (4,096 x 4,096) | 
| Resolution | Ex-works: 4,096 steps x 4,096 revolutions, Gray-Code, Set =0 factory-programmed. Other configurations on request. | 
| Measuring step | 0.043° | 
| Error limits G | ±0.25° | 
| Repeatability standard deviation | 0.1° | 
Interfaces
| Parameter | Value | 
|---|---|
| Communication interface | SSI | 
| Initialization time | 1,050 ms | 
| Parameterising data | Number of steps per revolution, Number of revolutions, Code type, Electronic adjustment | 
| Code type | Gray, binary | 
| Code sequence parameter adjustable | CW/CCW (V/R) | 
| Clock frequency | 1 MHz | 
| Set (electronic adjustment) | H-active (L=0-4.7V, H=10-Us V) | 
| cw/ccw (counting sequence when turning) | Lactive (L=0-1.5V, H=2.0-Us V) | 
Electronics
| Parameter | Value | 
|---|---|
| Connection type | Male connector, M23, 12-pin, radial | 
| Supply voltage | 10...32V | 
| Power consumption | ≤ 0.8W (without load) | 
| Reverse polarity protection | - | 
Mechanics
| Parameter | Value | 
|---|---|
| Mechanical design | Through hollow shaft | 
| Shaft diameter | 16 mm | 
| Weight | 0.8 kg | 
| Shaft material | Stainless steel | 
| Flange material | Aluminum | 
| Start up torque | 0.5 Ncm (+20°C) | 
| Operating torque | 0.4 Ncm (+20°C) | 
| Operating speed | ≤2,000 min⁻¹ | 
| Moment of inertia of the rotor | 153.77 gcm | 
| Bearing lifetime | 3.6x 10⁹ revolutions | 
| Angular acceleration | ≤600,000 rad/s² | 
Ambient data
| Parameter | Value | 
|---|---|
| EMC | According to EN 61000-6-2 and EN61000-6-3 | 
| Enclosure rating | IP65, with shaft seal (IEC 60529) | 
| Permissible relative humidity | 98% | 
| Operating temperature range | -20°C...+70°C | 
| Storage temperature range | -40 °C...+100°C, without package | 
| Resistance to shocks | 100g, 6ms (EN 60068-2-27) | 
| Resistance to vibration | 20g, 10Hz (EN 60068-2-6) | 
 
                 
            

 
                     
  