For ASS58N-F2AABR0GN-0013, EncoderWorks can provide a custom compatible replacement focused on Gray-code SSI pin mapping, 13-bit singleturn scaling, and 9416L radial connector matching. This model should not be treated like the AA connector version or the K1 cable version. The SSI principle may be the same, but connector layout, plug fit, reserved pins, and shield bonding must be checked before replacement approval.
The ASS58N-F2AABR0GN-0013 is an SSI singleturn absolute encoder configuration with Gray code, 13-bit singleturn resolution, 4.5–30 VDC supply, aluminum housing execution, Ø12 mm x 30 mm recessed hollow shaft, 12-pin 9416L-style M23 connector, and radial exit. The controller should expect 8192 positions per revolution, not a multiturn value.
The first failure boundary is SSI connector accuracy. Clock+ / Clock- and Data+ / Data- must remain true RS422 differential pairs. If the 9416L pinout is copied as a standard M23 layout without verification, the SSI frame can be present but shifted, unstable, or wrongly decoded as angle.


This replacement fails when SSI communication is present, but the PLC reads the wrong singleturn position because connector pin assignment, Gray decoding, 13-bit 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 recessed-shaft installation. The Ø12 mm shaft is not solid and not a simple through bore. The machine shaft must enter within the 15–30 mm insertion range, and the torque rest must prevent housing rotation without connector strain or offset preload.
The replacement decision should first confirm Gray SSI format, 13-bit singleturn mapping, 9416L radial connector pin assignment, Clock/Data differential wiring, 20 ±10 µs monoflop behavior, V/R direction input, PRESET 1 zero-set logic, 4.5–30 VDC supply, Ø12 mm recessed shaft fit, insertion depth, torque rest contact, shield grounding, and offset limits. EncoderWorks treats ASS58N-F2AABR0GN-0013 as an industrial encoder custom compatible solution where SSI connector accuracy and Ø12 recessed-shaft mechanics decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | ASS58N-F2AABR0GN-0013 |
| Encoder type | Singleturn absolute encoder |
| Interface | SSI / RS422 |
| Resolution | 13-bit singleturn |
| Position range | 8192 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 | Ø12 mm x 30 mm |
| Connection | 9416L-style 12-pin M23 connector |
| Exit position | Radial |
| Control inputs | V/R direction, PRESET 1 zero-set |
| Main engineering anchor | Gray SSI and 9416L connector |
| Main failure boundary | Wrong connector pin mapping, Gray decoding error, preset fault, shaft insertion error |

