For ASM58N-F1AK1R0GN-1213, EncoderWorks can provide a custom compatible replacement focused on Gray-code SSI mapping, 12/13-bit position scaling, and Ø10 mm recessed hollow-shaft installation. This model should not be treated as the same case as the 12/12-bit version. The cable, shaft, and interface may look similar, but the controller must read the correct singleturn and multiturn word length.
The ASM58N-F1AK1R0GN-1213 is an SSI multiturn absolute encoder configuration with Gray code, 12-bit singleturn resolution, 13-bit multiturn range, 4.5–30 VDC supply, aluminum housing execution, Ø10 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 interpretation. Clock+ / Clock- and Data+ / Data- must remain true RS422 differential pairs, but correct wiring alone is not enough. If the PLC expects 12/12 data or a binary word instead of Gray code, the received SSI frame can be stable while the absolute value is wrong.
This replacement fails when SSI communication is present, but the PLC reads the wrong position because Clock/Data pair assignment, Gray-code decoding, 12/13-bit 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 control input behavior. V/R changes counting direction, while PRESET 1 can reset the electrical reference. If either input is wired differently from the previous installation, the encoder can output clean SSI data with the wrong zero point or rotation sense.
Mechanically, the Ø10 mm recessed hollow shaft must be installed within the correct insertion range. It is not a solid shaft and not a normal through bore. The torque rest must prevent housing rotation without forcing offset load into the shaft.
The replacement decision should first confirm Gray SSI format, 12-bit singleturn and 13-bit multiturn mapping, K1 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, Ø10 mm recessed shaft fit, 15–30 mm insertion depth, torque rest contact, shield grounding, and offset limits. EncoderWorks treats ASM58N-F1AK1R0GN-1213 as an industrial encoder custom compatible solution where SSI word length and recessed-shaft mechanics decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | ASM58N-F1AK1R0GN-1213 |
| Encoder type | Multiturn absolute encoder |
| Interface | SSI / RS422 |
| Resolution | 12-bit singleturn + 13-bit multiturn |
| Position range | 4096 steps x 8192 turns |
| Code | Gray |
| Supply voltage | 4.5–30 VDC |
| Housing execution | Aluminum, powder coated |
| Shaft type | Recessed hollow shaft |
| Shaft size | Ø10 mm x 30 mm |
| Connection | K1 cable, 1 m |
| Exit position | Radial |
| Control inputs | V/R direction, PRESET 1 zero-set |
| Main engineering anchor | Gray SSI and 12/13 mapping |
| Main failure boundary | Wrong SSI word length, Gray decoding error, preset fault, shaft insertion error |
