Introduction; General; Hardware Versions - ABB REF 54 Series Technical Reference Manual, General

1MRS750527-MUM
3.
3.1.
3.2.
Feeder Terminal
Technical Reference Manual, General

Introduction

General

The REF 54_ feeder terminal is part of the ABB Distribution Automation system
and extends the functionality and flexibility of the concept further. This is possible
due to the modern technology applied both in hardware and software solutions.
Increased performance is achieved by utilizing the multiprocessor architecture.
Digital signal processing combined with a powerful CPU and distributed I/O
handling facilitates parallel operations and improves response times and accuracy.
The HMI including an LCD display with different views makes the local use of the
REF 54_ feeder terminal safe and easy. The HMI
Fig. 3.1.-1 REF 54_ feeder terminal

Hardware versions

The family of REF 54_ feeder terminals contains several hardware versions.
Depending on the number of I/Os available, the product is called REF 541, REF 543
or REF 545, see the following tables.
1. HMI is referred to as MMI in the relay and in the Relay Setting Tool
REF 54_
1
instructs the user how to proceed.
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