ABB RELION 630 Series Technical Manual page 20

Table of contents
14
Function block........................................................................... 317
Functionality ............................................................................. 317
Operation principle.................................................................... 317
Signals.......................................................................................318
Settings......................................................................................318
Section 9 General function block features....................................319
Definite time characteristics............................................................319
Definite time operation...............................................................319
Current-based inverse definite minimum time (IDMT)
characteristics.................................................................................324
IDMT curves for overcurrent protection..................................... 324
Standard inverse-time characteristics.................................. 326
User-programmable inverse-time characteristics................. 341
RI and RD-type inverse-time characteristics........................ 341
Reset in inverse-time modes..................................................... 344
Section 10 Device's physical connections......................................355
Protective earth connections.......................................................... 355
Inputs..............................................................................................356
Measuring inputs....................................................................... 356
Auxiliary supply voltage input.................................................... 356
Binary inputs..............................................................................357
Outputs........................................................................................... 358
IRF.............................................................................................358
Communication connections.......................................................... 358
Ethernet RJ-45 front connection................................................358
Ethernet connection for station communication.........................359
Optical serial rear connection.................................................... 359
Communication interfaces and protocols.................................. 359
Recommended third-party industrial Ethernet switches ........... 359
Terminal diagrams..........................................................................360
Section 11 Technical data.............................................................. 361
Section 12 Device and functionality tests.......................................365
Section 13 Applicable standards and regulations.......................... 369
Section 14 Glossary....................................................................... 371
PML630/Compact Load-Shedding Solution
Technical Manual