For ASM58N-F2AK1R0BN-1213, EncoderWorks can provide a custom compatible replacement focused on binary SSI mapping, 12/13-bit position scaling, and Ø12 mm recessed hollow-shaft installation. This model should not be treated like the Ø10 mm version or a generic SSI encoder. The larger recessed shaft changes mechanical fit, while binary decoding and SSI word length decide whether the controller reads the same absolute value.
The ASM58N-F2AK1R0BN-1213 is an SSI multiturn absolute encoder configuration with binary code, 12-bit singleturn resolution, 13-bit multiturn range, 4.5–30 VDC supply, aluminum housing execution, Ø12 mm x 30 mm recessed hollow shaft, K1 1 m cable connection, and radial cable exit. The replacement should preserve 4096 steps per revolution and 8192 turns.
The first failure boundary is SSI word accuracy. Clock+ / Clock- and Data+ / Data- must remain true RS422 differential pairs. Correct wiring alone is not enough; the controller must also match binary decoding, 12/13-bit word length, monoflop timing, and clock pause behavior.
This replacement fails when SSI communication is present, but the PLC reads the wrong position because Clock/Data pair assignment, binary decoding, word length, monoflop timing, or cable shielding does not match the original encoder. That is a signal-chain and parameter failure, not simply a sensor failure.
The second boundary is input and shaft behavior. V/R changes counting direction, while PRESET 1 can reset the electrical reference. The Ø12 mm recessed hollow shaft must enter within the correct insertion range, and the torque rest must stop housing rotation without radial, axial, or angular preload.
The replacement decision should first confirm binary SSI format, 12-bit singleturn and 13-bit multiturn mapping, K1 1 m radial 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, Ø12 mm recessed shaft fit, 15–30 mm insertion depth, torque rest contact, shield grounding, and offset limits. EncoderWorks treats ASM58N-F2AK1R0BN-1213 as an industrial encoder custom compatible solution where SSI word accuracy and Ø12 recessed-shaft mechanics decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | ASM58N-F2AK1R0BN-1213 |
| Encoder type | Multiturn absolute encoder |
| Interface | SSI / RS422 |
| Resolution | 12-bit singleturn + 13-bit multiturn |
| Position range | 4096 steps x 8192 turns |
| Code | Binary |
| 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 | K1 cable, 1 m |
| Exit position | Radial |
| Control inputs | V/R direction, PRESET 1 zero-set |
| Main engineering anchor | Binary SSI and Ø12 recessed shaft |
| Main failure boundary | Wrong SSI word length, binary decoding error, preset fault, shaft insertion error |
