ABB RELION 670 Series Technical Manual page 8

Table of contents
5.1.2 Settings................................................................................................................................................83
5.2 Local HMI signals.................................................................................................................................... 83
5.2.1 Identification.......................................................................................................................................83
5.2.2 Function block.................................................................................................................................... 84
5.2.3 Signals.................................................................................................................................................. 84
5.3 Basic part for LED indication module................................................................................................ 84
5.3.1 Identification...................................................................................................................................... 84
5.3.2 Function block.................................................................................................................................... 85
5.3.3 Signals.................................................................................................................................................. 85
5.3.4 Settings................................................................................................................................................86
5.4 LCD part for HMI function keys control module.............................................................................. 86
5.4.1 Identification...................................................................................................................................... 86
5.4.2 Function block.................................................................................................................................... 86
5.4.3 Signals.................................................................................................................................................. 87
5.4.4 Settings................................................................................................................................................ 87
5.5 Operation principle................................................................................................................................ 88
5.5.1 Local HMI............................................................................................................................................. 88
5.5.1.1 Keypad.............................................................................................................................................. 89
5.5.1.2 Display............................................................................................................................................... 91
5.5.1.3 LEDs...................................................................................................................................................93
5.5.2 LED configuration alternatives....................................................................................................... 94
5.5.2.1 Functionality ................................................................................................................................... 94
5.5.2.2 Status LEDs......................................................................................................................................94
5.5.2.3 Indication LEDs............................................................................................................................... 95
5.5.3 Function keys.................................................................................................................................... 102
5.5.3.1 Functionality ................................................................................................................................. 102
5.5.3.2 Operation principle.......................................................................................................................102
Section 6 Differential protection........................................................................................105
6.1 Transformer differential protection T2WPDIF and T3WPDIF (87T)............................................105
6.1.1 Identification.....................................................................................................................................105
6.1.2 Functionality .................................................................................................................................... 105
6.1.3 Function block.................................................................................................................................. 108
6.1.4 Signals................................................................................................................................................ 109
6.1.5 Settings...............................................................................................................................................112
6.1.6 Monitored data..................................................................................................................................117
6.1.7 Operation principle.......................................................................................................................... 118
6.1.7.1 Function calculation principles...................................................................................................119
6.1.7.2 Logic diagram................................................................................................................................138
6.1.8 Technical data................................................................................................................................... 143
6.2 High impedance differential protection, single phase HZPDIF (87).......................................... 144
6.2.1 Identification.....................................................................................................................................144
6.2.2 Functionality..................................................................................................................................... 144
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Technical manual