AVM14N-05MK2A0GN-1212 Gray SSI and ATEX Shaft

For AVM14N-05MK2A0GN-1212, EncoderWorks can provide a custom compatible replacement focused on Gray-code SSI mapping, 12/12-bit position scaling, and ATEX solid-shaft installation. This model should not be treated as a recessed hollow-shaft encoder or an incremental pulse encoder. The main replacement risk is whether the controller receives the same 24-bit absolute position while the keyed solid shaft, flange centering, preset input, and counting direction remain consistent with the original machine.

The AVM14N-05MK2A0GN-1212 is an SSI multiturn absolute encoder configuration with Gray code, 12-bit singleturn resolution, 12-bit multiturn range, 10–30 VDC supply, ATEX flameproof IP66 construction, Ø12 mm x 25 mm solid shaft with 40 mm fit, K2 2 m axial cable connection, and aluminum housing execution. The replacement should preserve 4096 steps per revolution and 4096 turns.

The first failure boundary is SSI word accuracy. Clock+ / Clock- and Data+ / Data- must remain true RS422 differential pairs. If cable assignment, Gray decoding, clock pause, or 24-bit word interpretation is not matched, the controller may receive a stable SSI signal while reading the wrong absolute position.

This replacement fails when SSI communication is present, but the PLC reads the wrong 24-bit position because Clock/Data pair assignment, Gray-code decoding, monoflop timing, preset input, or counting direction does not match the original encoder. That is a signal-chain and parameter failure, not simply a sensing failure.

The second boundary is ATEX solid-shaft mechanics. This encoder uses a keyed solid shaft, not a hollow shaft. Coupling, belt pulley, or measuring-wheel load must stay within axial and radial limits. Flange centering, shaft alignment, PE grounding, and cable strain must be checked before startup.

The replacement decision should first confirm Gray SSI format, 12-bit singleturn and 12-bit multiturn mapping, K2 axial 9-core cable assignment, Clock/Data differential wiring, 20 ±10 µs monoflop behavior, 10–30 VDC supply, PRESET 1 zero-set input, counting-direction input, ATEX marking, Ø12 mm keyed solid-shaft fit, 40 mm centering fit, flange mounting, shield grounding, and shaft load. EncoderWorks treats AVM14N-05MK2A0GN-1212 as an industrial encoder custom compatible solution where SSI word accuracy and ATEX shaft mechanics decide field reliability.

Typical production lead time: 15 working days.

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