AVM14N-05MK2A0GN-1212 SSI Multiturn Encoder Solution

A custom compatible encoder solution can be provided for AVM14N-05MK2A0GN-1212 in maintenance, retrofit, replacement, and upgrade projects. This model is a multiturn absolute encoder with an SSI interface, a Ø12 mm solid shaft, axial 2 m cable, and Gray code output. Typical production lead time: 15 working days. The engineering objective is to preserve shaft-side mounting continuity, SSI clock/data timing behavior, and Gray-code compatibility so that field replacement can remain practical and stable.

Technical Overview of the AVM14N-05MK2A0GN-1212 Encoder

The AVM14N-05MK2A0GN-1212 belongs to a multiturn absolute encoder platform using the Synchronous Serial Interface with galvanically isolated RS 422 electronics. This coded version uses a Ø12 mm x 25 mm solid shaft with 40 mm fit, clamping flange, axial cable exit, 2 m cable, Gray code output, and a resolution structure of 12 bit singleturn plus 12 bit multiturn. The overall resolution is 24 bit.

The platform is based on photoelectric sampling and transfers position values synchronously to the control module clock. Only four lines are required for clock and data transmission, independent of encoder resolution. In addition to the SSI data channel, this platform also supports a counting-direction input and a zero-set input, which makes it suitable for installed systems where both interface timing and input logic continuity matter.

Industrial Integration Considerations

For this model, Gray code output is the main differentiation point. In installed control systems, Gray-code compatibility may be intentionally chosen to reduce bit-transition ambiguity in position handling. For retrofit work, the output code should therefore be preserved exactly rather than replaced with a binary variant just because the mechanical platform is similar.

The mechanical side is equally important. This encoder uses a solid shaft with feather key groove and is suitable for receiving a belt pulley or similar device. The clamping flange provides centering shoulders of Ø40 mm and Ø80 mm together with 3 x M6 mounting holes. This means shaft coupling, pulley fit, and flange reference geometry should all remain aligned with the original installation.

Field Installation and Wiring Notes

For SSI installations, controller timing and line length should be reviewed together. The transfer rate is specified at 0.05 ... 1.5 MBit/s, but the datasheet also gives line-length guidance: less than 50 m for up to 400 kHz, less than 100 m for up to 300 kHz, less than 200 m for up to 200 kHz, and less than 400 m for up to 100 kHz. Matching these conditions during replacement helps preserve stable clock/data communication.

The counting-direction input is activated with 0-level, while the zero-set input is activated with 1-level. These input polarities should be kept consistent with the original control logic. Since this is an axial cable version, rear cable clearance and bend radius should also be checked before final selection.

Custom Compatible Encoder Solution

A custom compatible encoder solution for AVM14N-05MK2A0GN-1212 should preserve five engineering points: Ø12 mm shaft geometry with 40 mm fit, clamping flange mounting reference, 2 m axial SSI cable layout, Gray code output, and 12 bit singleturn plus 12 bit multiturn structure. This is important because replacement success depends on both SSI timing continuity and shaft-side mechanical alignment.

Where the installed application uses preset input, counting-direction control, pulley mounting, or fixed controller-side SSI timing, those items should be confirmed during engineering review before final release.

Custom Solution Photos

Lead Time and Custom Development

Typical production lead time: 15 working days.

The main checkpoints should include shaft diameter, feather key groove compatibility, flange reference, axial cable clearance, SSI baud rate versus cable length, Gray-code requirement, and the original counting-direction / preset input logic.

Typical Technical Parameters