ABB TU890 3BSC690075R1 Compact Module Termination Unit
General info
| Manufacture | ABB |
| Item No | TU890 |
| Article number | 3BSC690075R1 |
| Series | 800xA Control Systems |
| Origin | Sweden |
| Dimension | 73*233*212(mm) |
| Weight | 0.5kg |
| Customs Tariff Number | 85389091 |
| Type |
Module Termination Unit
|
Detailed data
ABB TU890 3BSC690075R1 Compact Module Termination Unit
The TU890 is a compact MTU for the S800 I/O. The MTU is a passive unit used for connection of the field wiring and power supply to the I/O modules. It also contains a part of the ModuleBus. The TU891 MTU has gray terminals for field signals and process voltage connections. The maximum rated voltage is 50 V and maximum rated current is 2 A per channel, but these are primarily constrained to specific values by the design of the I/O modules for their certified application.
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.The device organizes and simplifies the wiring process, reducing the complexity of connecting a large number of field devices to I/O modules.
The TU890 is responsible for providing proper termination for field wiring, ensuring reliable transmission of signals from field devices to I/O modules. Field device connections support a wide range of field devices, allowing integration of various types of sensors and actuators. The signal routing termination unit ensures that the correct signal digital or analog from the field device is routed to the appropriate I/O channel for processing.
Frequently asked questions about the product are as follows:
-What are the main benefits of using the ABB TU890 3BSC690075R1?
The compact design of the TU890 provides a space-saving solution for wiring and connecting field devices to the S800 I/O system. It reduces the control panel footprint while maintaining flexibility and reliability.
-How do I install the TU890?
Mount the device on a DIN rail. Connect the field wiring to the terminal block. Connect the terminal unit to the appropriate I/O module in the ABB S800 system.
-Is the TU890 suitable for use in hazardous areas?
The TU890 itself does not have intrinsic safety certification. For use in hazardous environments, ABB should be consulted for advice on additional safety barriers or certifications required for the specific application.
