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S800 I/O – TU845

The TU845 MTU can have up to 8 I/O channels and 2+2 process voltage connections. Each channel has two I/O connections and one ZP connection. Input signals are connected via individual shunt sticks, TY801. The shunt stick is used to choose between voltage and current input. The maximum rated voltage is 50 V and maximum rated current is 2 A per channel.

The MTU distributes the two ModuleBuses, one to each I/O module and to the next MTU. It also generates the correct address to the I/O modules by shifting the outgoing position signals to the next MTU. It has a mechanical latch that locks the MTU to the DIN rail.

Four mechanical keys, two for each I/O module, 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

  • Complete installation of I/O modules using 2-wire connections and field power distribution.
  • Up to 8 channels of field signals and process power connections.
  • Connections to two ModuleBuses and I/O modules.
  • Mechanical keying prevents insertion of the wrong I/Omodule.
  • Latching device to DIN rail for grounding.
  • DIN rail mounting.
Article number 3BSE021447R1
Type Redundant
Connection Terminal block
Channels 8
Voltage 50 V
Mounting Vertical
Mounting detail 55 º (131 °F)
Use with I/O AI845, AI880, AI880A and DP840
Process connections 40 up to 8 I/O channels (2 terminals per channel)
4 Process power
20 Process power (0 V)
Single/redundant I/O Redundant

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satis@gest.com.tr

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