ABB TU812V1 3BSE013232R1 Compact Module Termination Unit

ABB TU812V1 3BSE013232R1 Compact Module Termination Unit

Functional Description

The TU812V1 is a 50 V compact module termination unit (MTU) for the S800 I/O system with 16 signal

connections. The MTU is a passive unit used for  connection of the field wiring. It also contains a part of the

ModuleBus.

The MTU distributes the ModuleBus to the I/O module and to the next MTU. It also generates the correct

address to the I/O module by shifting the outgoing position signals to the next MTU.

Two mechanical keys are used to configure the MTU for different types of I/O modules. This is only a

mechanical configuration and it does not affect the functionality of the MTU or the I/O module. Each key has

six positions, which gives a total number of 36 different configurations.

Features and benefits

· Compact installation of I/O modules using D-sub connector.

· Connections to ModuleBus and I/O modules.

· Mechanical keying prevents insertion of the wrong I/O module.

· Latching device to DIN rail for grounding.

· DIN rail mounting.

Technical Specifications