ABB 3HAC043904-001 SMB Unit is an encoder serial measurement module for ABB robotic systems, which is used to acquire and process shaft encoder signals.

It consists of a technical plastic board with DSP AD converter chip, angle decoder chip and RS485 interface.

It enables high-precision acquisition and processing of encoder signals.

The encoder serial measurement module operates at 24V DC.

It has 6 axis encoder interfaces, each of which contains an A/B signal input and an indexed Z signal input.

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