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ABB TU810V1 Compact Module Termination Unit

Configured for high-density signal distribution in S800 I/O and AC 800M controller platforms, the ABB TU810V1 (TU810V1 Compact Module Termination Unit) provides direct physical field wiring termination and mechanical mounting for process I/O modules.

Hardware Specifications

Parameter Specification
Model TU810V1
Brand ABB
Origin Sweden
Weight 0.32 kg
Dimensions 58.5 x 170 x 64 mm
Operating Temp -20 deg C to +55 deg C (Horizontal)
Power Consumption Not specified
Channels 16
Voltage Rating 50 V

S800 I/O Termination Architecture

The TU810V1 serves as the passive base unit for the S800 I/O system, facilitating the electrical connection between field instrumentation and the active I/O module electronics. The unit features a 2x8 screw terminal configuration for signal input/output and dedicated 2x2 and 5x2 process power terminals to distribute auxiliary power to field devices. By integrating the field wiring directly into the base unit, the TU810V1 supports modular maintenance, allowing for the extraction of I/O modules without disturbing the permanent field-side wiring loops.

Frequently Asked Questions (FAQ)

Q: Can the TU810V1 be mounted in both vertical and horizontal orientations?

A: Yes, the unit is designed for DIN rail mounting in either orientation. Note that the maximum operating temperature derates from 55 deg C (horizontal) to 40 deg C (vertical) to account for natural convection differences.

Q: Is the TU810V1 suitable for use with both digital and analog S800 modules?

A: Yes, the unit is compatible with a variety of S800 I/O modules. Always verify the specific module compatibility matrix in the relevant ABB S800 hardware documentation to ensure the signal type and wiring layout align with the terminal assignment of the TU810V1.

Field Installation Guidelines

  • DIN Rail Mounting: Snap the unit onto a standard 35 mm DIN rail. Ensure the locking latch is fully engaged to prevent lateral movement or displacement due to cabinet vibrations.

  • Wiring Termination: Utilize the 2x8 screw terminals for field signals. Maintain strict wire management to avoid excessive mechanical stress on the terminal blocks. Use ferrules on stranded conductors to prevent wire fraying and poor contact resistance.

  • Grounding and Shielding: Terminate cable shields according to the specific I/O module wiring diagram. Ensure that the DIN rail itself is bonded to a clean earth ground to maintain the integrity of the electromagnetic shielding for the termination unit.

  • Process Power Distribution: Use the dedicated 2x2 and 5x2 process power terminals for field power distribution. Ensure that the total current draw does not exceed the unit's rated capacity to prevent thermal degradation of the terminal strips.

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