A custom compatible replacement for ASM58N-F1AAARHGN-1416 can be supplied by EncoderWorks with the main check placed on Gray-code SSI pin mapping, H-option verification, and 14/16-bit position scaling. This model should not be treated like the R0 connector version. The connector style and shaft size may look familiar, but the H option segment must be confirmed against the original label, wiring requirement, or machine drawing before production.
The ASM58N-F1AAARHGN-1416 is an SSI multiturn absolute encoder configuration with Gray code, 16-bit singleturn resolution, 14-bit multiturn range, 4.5–30 VDC supply, aluminum housing execution, Ø10 mm x 30 mm recessed hollow shaft, 12-pin M23 connector, and radial exit. The replacement should preserve 65536 steps per revolution and 16384 turns.
The first failure boundary is SSI connector accuracy. Clock+ / Clock- and Data+ / Data- must remain true RS422 differential pairs. If the M23 pinout is copied incorrectly, the H option is assumed instead of verified, or reserved pins are connected as active conductors, the SSI frame can be shifted, unstable, or decoded as the wrong Gray position.
This replacement fails when SSI communication is present, but the PLC reads the wrong position because M23 pin assignment, Gray decoding, 14/16-bit word length, monoflop timing, H-option behavior, or shield grounding does not match the original encoder. That is a signal-chain and option-matching 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 Ø10 mm recessed hollow shaft must enter within the 15–30 mm insertion range, and the torque rest must prevent housing rotation without radial, axial, or angular preload.
The replacement decision should first confirm Gray SSI format, 16-bit singleturn and 14-bit multiturn mapping, radial M23 pin assignment, H-option requirement, 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, shield grounding, and offset limits. EncoderWorks treats ASM58N-F1AAARHGN-1416 as an industrial encoder custom compatible solution where SSI pin accuracy and option-specific matching decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | ASM58N-F1AAARHGN-1416 |
| Encoder type | Multiturn absolute encoder |
| Interface | SSI / RS422 |
| Resolution | 16-bit singleturn + 14-bit multiturn |
| Position range | 65536 steps x 16384 turns |
| 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 | 12-pin M23 connector |
| Exit position | Radial |
| Option point | H option, verify against original unit |
| Control inputs | V/R direction, PRESET 1 zero-set |
| Main engineering anchor | Gray SSI and H option |
| Main failure boundary | Wrong M23 pin mapping, option mismatch, preset fault, shaft insertion error |
