ABB Relion 670 series, Technical Reference Manual, Page: 15 / 1232

Blocking logic..............................................................................358
Function block.................................................................................359
Input and output signals..................................................................359
Setting parameters..........................................................................360
Pole slip protection PSPPPAM (78)......................................................360
Introduction......................................................................................360
Principle of operation.......................................................................361
Function block.................................................................................366
Input and output signals..................................................................366
Setting parameters..........................................................................367
Technical data.................................................................................368
Automatic switch onto fault logic, voltage and current based
ZCVPSOF ............................................................................................368
Introduction......................................................................................368
Principle of operation.......................................................................369
Function block.................................................................................371
Input and output signals..................................................................371
Setting parameters..........................................................................371
Technical data.................................................................................372
Phase preference logic PPLPHIZ.........................................................372
Introduction......................................................................................372
Principle of operation.......................................................................373
Function block.................................................................................375
Input and output signals..................................................................376
Setting parameters..........................................................................376
Section 7 Current protection..............................................................379
Instantaneous phase overcurrent protection 3-phase output
PHPIOC (50).........................................................................................379
Introduction......................................................................................379
Principle of operation.......................................................................379
Function block.................................................................................380
Input and output signals..................................................................380
Setting parameters..........................................................................381
Technical data.................................................................................381
Four step phase overcurrent protection OC4PTOC (51/67).................381
Introduction......................................................................................382
Principle of operation.......................................................................382
Function block.................................................................................388
Input and output signals..................................................................388
Table of contents
9
Technical reference manual