ABB NTAC-02 SP KIT Pulse Encoder Interface Kit

Overview

This chapter states the safety instructions that must be when installing and operating the NTAC-0x/NDIO-0x/NAIO-0x Module. The material in this chapter must be studied before attempting any work on, or with, the unit.

This chapter contains a description of the I/O Extension Link, the Pulse Encoder Interface Module, the I/O Extension Modules, and information on warranty.

All the Pulse Encoder Interface Module (NTAC) and I/O Extension Modules (NDIO and NAIO) are connected to the frequency converter via an optical DDCS-protocol communication link. The modules, together with the NIOC Standard I/O Board, are usually connected in a ring on Channel CH1 of the NAMC (Application and Motor Control Board). The NAMC board acts as the master, polling the other stations cyclically. The modules respond to the master’s enquiries. Each device on the DDCS link has an individual node number. The modules are numbered by setting the DIP switches located inside the module enclosure. (The address of the NIOC board is fixed to 1.)

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