ABB REF 54 Series Technical Reference Manual, General

110
1MRS750527-MUM
Feeder Terminal
Technical Reference Manual, General
REF 54_
8.4. Release 2.5
8.4.1. Changes and additions to earlier released revisions
General
• New language versions
• English - Spanish
• English - Portuguese
• English - Polish
• IRF handling
• Input filtering time range
• Technical data corrections
• New virtual channels
• New type of RTD input: Ni 120US
Function blocks
• NOC3Low and NEF1Low: addition of ANSI inverse time curve
• Modification of Diff3
For further information about the changes above, refer to the function block
descriptions on the CD-ROM Technical Descriptions of Functions.
Protocols & communication
• IEC 60870-5-103
•SMS bus
• Parallel communication and support
• Simultaneous use of the rear connectors
Hardware & mechanics
• Voltage threshold for digital inputs:
• Power supply (PS1/240 V High) 110/120/220/240 V AC or 110/125/220 V DC
with the digital input nominal voltage 220 V DC
Tools
• Protocol selections (“Protocol 2”)
Table 8.4.1-1 New protection functions
Function Description
CUB3Cap Three-phase current unbalance protection for H-bridge connected shunt
capacitor
Fusefail Fuse failure supervision

ABB REF 54 Series Specifications

General

Brand	ABB
Model	REF 54 Series
Category	Touch terminals
Language	English