For ASS58N-F2AK5R0GN-0012, EncoderWorks can provide a custom compatible replacement focused on Gray-code SSI cable mapping, K5 cable verification, and Ø12 mm recessed hollow-shaft installation. This model should not be treated like the standard K1 cable version. The SSI signal principle may be the same, but the cable execution, conductor assignment, shield continuity, and machine-side routing must be checked against the original unit before production approval.
The ASS58N-F2AK5R0GN-0012 is an SSI singleturn absolute encoder configuration with Gray code, 12-bit singleturn resolution, 4.5–30 VDC supply, aluminum housing execution, Ø12 mm x 30 mm recessed hollow shaft, K5 cable-style connection, and radial cable exit. The controller should expect 4096 positions per revolution, not a multiturn position frame.
The first failure boundary is SSI cable accuracy. Clock+ / Clock- and Data+ / Data- must remain true RS422 differential pairs. If the cable assignment is copied only by color, or if the K5 execution is assumed without checking the original wiring, the SSI frame 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, 12-bit word length, PRESET 1 input, V/R direction state, or cable shielding does not match the original encoder. That is a signal-chain and parameter failure, not simply a sensing failure.
The second boundary is Ø12 mm recessed-shaft installation. The shaft is not solid and not a simple through bore. The machine shaft must enter within the 15–30 mm insertion range, while the torque rest prevents housing rotation without radial, axial, or angular preload.
The replacement decision should first confirm Gray SSI format, 12-bit singleturn mapping, K5 radial cable requirement, 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, cable routing, and offset limits. EncoderWorks treats ASS58N-F2AK5R0GN-0012 as an industrial encoder custom compatible solution where SSI cable accuracy and Ø12 recessed-shaft mechanics decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | ASS58N-F2AK5R0GN-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 | Ø12 mm x 30 mm |
| Connection | K5 cable-style connection, verify original execution |
| Exit position | Radial |
| Control inputs | V/R direction, PRESET 1 zero-set |
| Main engineering anchor | Gray SSI and K5 cable |
| Main failure boundary | Wrong SSI pair mapping, cable mismatch, preset fault, shaft insertion error |
