For the GM401.012A002 and GM401.A12A002 variants, we offer a fully compatible SSI encoder 1:1 replacement designed to meet demanding industrial requirements. The replacement mirrors the original electrical interface and functional characteristics, ensuring seamless substitution during maintenance or retrofit projects.
Using an SSI interface, the encoder provides accurate absolute multiturn position feedback with reliable sampling behavior. High code stability and consistent timing support precise synchronization between encoder and controller, making it suitable for motion control applications that require repeatable and dependable positioning.
Mechanically, the encoder conforms to standard industrial mounting conventions, allowing installation without mechanical modification. Robust construction and resistance to vibration, shock, and electrical interference ensure stable operation in harsh environments. Integrated self-diagnostic functions continuously monitor internal status and signal integrity, helping reduce unplanned downtime and improve system availability.
This replacement solution is ideal for industrial automation systems, positioning equipment, and machinery that depend on accurate absolute position feedback and dependable long-term performance.
Technical data
| Parameter | Value |
| Supply voltage | 10...30 VDC with reverse voltage protection |
| Current consumption | Max. 50 mA (w/o load) for 24 VDC |
| SSI pulse frequency | 62.5 kHz up to 1.5 MHz |
| Mono-flop time | 20 μs |
| Pulse space | Min. 25 μs |
| Code switching speed for sampling | 800 kHz |
| Deviation of sampling measuring step | 0.025 degree at 400 kHz 0.05 degree at 800 kHz |
| Electric connector | The electric connector must not be plugged on or removed whilst under voltage. |
| Parameter | Value |
| RPM value | mechanical: Max. 10,000 RPM electrical: Max. 6,000 RPM |
| Anlauf-Drehmoment | w/o seal (IP54): < 0.010 Nm with seal (IP65): < 0.015 Nm |
| Shaft loading | axial: < 20 N radial: < 40 N |
| Inertia torque | 2 x 10⁻⁶ kgm² |
| Material | Housing: Steel Flange: Aluminium |
| Weight | Approximately 400 g |
| Parameter | Value |
| Ambient temperature | -20...+60 °C |
| Storage temperature | -20...+70 °C |
| Protection to | Shaft w/o seal: IP 54 Shaft with seal: IP 65 |
| Relative humidity | Max. 95 %, non-condensing |
| Endurance - Vibration | IEC 68 Section 2 - 6 (≤100 m/s² / 16-2000 Hz) |
| Endurance - Shock | IEC 68 Section 2 - 27 (≤2000 m/s² / 6 ms) |
| Interference immunity | EN 50082-2 EN 61000-4 - 2 to 4 Severity grade 3 |
| Emmited interference | EN 50081-2 |
