For ASS58N-F1AK1A0GN-0012, EncoderWorks can provide a custom compatible replacement focused on Gray-code SSI cable mapping, 12-bit singleturn scaling, and axial cable clearance. This model should not be treated like the radial cable version. The SSI format may be similar, but axial exit changes rear cable routing, bend radius, shield continuity, and how cable strain affects the recessed hollow-shaft installation.
The ASS58N-F1AK1A0GN-0012 is an SSI singleturn absolute encoder configuration with Gray code, 12-bit singleturn resolution, 4.5–30 VDC supply, aluminum housing execution, Ø10 mm x 30 mm recessed hollow shaft, K1 1 m cable connection, and axial cable exit. The controller should expect 4096 positions per revolution, not a multiturn position frame.
The first failure boundary is SSI signal accuracy. Clock+ / Clock- and Data+ / Data- must remain true RS422 differential pairs. If cable assignment, Gray decoding, 12-bit word length, monoflop timing, or clock pause behavior is different, the SSI signal can be present while the PLC reads the wrong shaft angle.
This replacement fails when SSI communication is present, but the PLC reads the wrong singleturn position because Clock/Data pair assignment, Gray decoding, word length, PRESET 1 input, or V/R direction state does not match the original encoder. That is a signal-chain and parameter failure, not simply a sensing failure.
The second boundary is axial cable and shaft behavior. V/R changes counting direction, while PRESET 1 can reset the electrical reference. The Ø10 mm recessed hollow shaft must enter within the 15–30 mm insertion range, and the torque rest must stop housing rotation without cable pull, radial load, or angular preload.
The replacement decision should first confirm Gray SSI format, 12-bit singleturn mapping, K1 1 m axial cable assignment, Clock/Data differential wiring, 20 ±10 µs monoflop behavior, V/R direction input, PRESET 1 zero-set logic, 4.5–30 VDC supply, Ø10 mm recessed shaft fit, insertion depth, torque rest contact, rear cable clearance, shield grounding, and offset limits. EncoderWorks treats ASS58N-F1AK1A0GN-0012 as an industrial encoder custom compatible solution where SSI word accuracy and axial cable mechanics decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | ASS58N-F1AK1A0GN-0012 |
| Encoder type | Singleturn absolute encoder |
| Interface | SSI / RS422 |
| Resolution | 12-bit singleturn |
| Position range | 4096 steps per revolution |
| Code | Gray |
| Supply voltage | 4.5–30 VDC |
| Transfer rate | 0.1–2 MBit/s |
| Housing execution | Aluminum, powder coated |
| Shaft type | Recessed hollow shaft |
| Shaft size | Ø10 mm x 30 mm |
| Connection | K1 cable, 1 m |
| Exit position | Axial |
| Control inputs | V/R direction, PRESET 1 zero-set |
| Main engineering anchor | Gray SSI and axial cable |
| Main failure boundary | Wrong SSI word length, Gray decoding error, preset fault, cable preload |
