AVS78E-011KRR0GN-0013 Gray SSI and 13-Bit Terminal

A custom compatible replacement for AVS78E-011KRR0GN-0013 can be supplied by EncoderWorks with the main check placed on Gray-code SSI terminal mapping, 13-bit singleturn scaling, and Ø10 mm clamping-flange shaft fit. This model should not be treated like the 12-bit or 16-bit versions. The mechanical envelope may be similar, but the controller must expect an 8192-step singleturn word with the same SSI timing, preset input, and counting-direction behavior.

The AVS78E-011KRR0GN-0013 is an explosion-proof SSI singleturn absolute encoder configuration with Gray code, 13-bit singleturn resolution, 10–30 VDC supply, aluminum housing execution, Ø10 mm x 20 mm solid shaft, clamping flange, KR terminal compartment, and radial exit. It should be handled as singleturn angle feedback, not as multiturn position feedback.

The first failure boundary is SSI terminal assignment. Clock+ / Clock- and Data+ / Data- must remain true RS422 differential pairs. If terminal mapping, Gray decoding, shield grounding, preset wiring, or counting-direction input is changed, the SSI signal can be present while the PLC calculates the wrong shaft angle.

This replacement fails when SSI communication is present, but the PLC reads the wrong singleturn position because terminal mapping, Gray-code decoding, 13-bit word length, 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 flameproof solid-shaft installation. The Ø10 mm shaft, clamping-flange centering, coupling fit, radial terminal exit, grounding, and axial/radial shaft load must be checked together. Terminal access and cable entry must preserve the hazardous-area sealing requirement.

The replacement decision should first confirm Gray SSI format, 13-bit singleturn mapping, KR radial terminal-compartment wiring, Clock/Data differential pairs, 20 ±10 µs monoflop behavior, 10–30 VDC supply, PRESET zero-set input, counting-direction input, aluminum housing execution, Ø10 mm solid-shaft fit, clamping-flange mounting, radial exit clearance, shield grounding, flameproof cable entry, and shaft load. EncoderWorks treats AVS78E-011KRR0GN-0013 as an industrial encoder custom compatible solution where SSI terminal accuracy and 13-bit angle scaling decide field reliability.

Typical production lead time: 15 working days.

Key Data

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