وحدة إدخال تماثلية ABB NTAI05 لوحدات PLC من سلسلة AC500

The ABB NTAI05, also cataloged as the NTAI05 Analog Input Termination Unit, operates as a dedicated hardware component for analog signal termination within ABB INFI 90 control system platforms. The unit provides 16 high level analog input channels and interfaces with FEC and NKTU cable assemblies for field signal connection.

Hardware Specifications

Analog Signal Termination and INFI 90 Interface

The ABB NTAI05 provides field termination for high level analog input signals connected to ABB INFI 90 systems. The termination unit routes field wiring through dedicated input channels before connection to the FEC interface and NKTU cable system.

The unit configuration supports analog current loop termination, including 20 mA input signal processing paths. Field wiring separation, terminal identification, and cable routing should follow INFI 90 installation documentation.

Frequently Asked Questions

Q: What type of signals does the ABB NTAI05 terminate?
A: The NTAI05 terminates high level analog input signals through 16 input channels for ABB INFI 90 system applications.

Q: Which cable assemblies are compatible with the NTAI05?
A: The NTAI05 is specified for use with IMFEC11, IMFEC12 and NKTU01 cable assemblies.

Q: Does the NTAI05 provide signal conversion or processing functions?
A: The NTAI05 is an analog input termination unit. Its function is field signal termination and interface connection rather than standalone signal processing.

Field Installation Guidelines

Install the NTAI05 in the designated INFI 90 termination assembly location with correct mechanical fixing and cable alignment.

Field signal cables should be routed separately from high-voltage power conductors to reduce electrical interference. Shielded analog signal wiring should follow site grounding practices, with cable shields terminated according to the control system installation requirements.

Verify terminal assignments before connecting field loops. Confirm 24 VDC supply wiring, signal polarity, and cable type compatibility with the connected FEC and NKTU interfaces before system commissioning.