NIDI01 | ABB Digital I/O Termination Module

The Digital I/O Termination Unit (NTDI01) is an interface forINFI 90 Process Management System I/O signals. These signals are used to control and monitor processes. Terminationunits provide the physical connection points for process fieldwiring, and configure the system I/O signals.This instruction explains the purpose, features and specifications of the Digital I/O Termination Unit (TDI). It also detailssetup, installation, maintenance and replacement procedures.Determine the I/O voltage requirements for your applicationand insert the appropriate fuse in the circuit board fuse holders. If a 24 VDC I/O voltage is required from E1 or E2, use athree amp fuse (P/N 194776A13001). If a 125 VDC or 120 VACI/O voltage is required from E1 or E2, use a 0.25 amp fuse (P/N 194776A12500).