1.4.2 Document conventionsThe following conventions are used for the presentation of material:• Abbreviations in this manual are spelled out in the section "Glossary". Inaddition, the section contains descriptions on several terms.• Push button navigation in the HMI menu structure is presented by using the pushbutton icons, for example:To navigate between the options, use and .• HMI menu paths are presented as follows:Select Main menu/Configuration/HMI.• Menu names are shown in bold in WHMI, for example:Click Information in the WHMI menu structure.• HMI messages are shown in Courier font, for example:To save the changes in non-volatile memory, select Yes and press• Parameter names are shown in italics, for example:The function can be enabled and disabled with the Operation setting.• Parameter values are indicated with quotation marks, for example:The corresponding parameter values are "On" and "Off".• IED input/output messages and monitored data names are shown in Courier font,for example:When the function starts, the START output is set to TRUE.1.4.3 Functions, codes and symbolsTable 1:Functions included in the RED615 standard configurationFunction IEC 61850 IEC 60617 ANSILine differential protection, stabilized low stageand instantaneous high stageLNPLDF 3ΔI >, 3ΔI>> 87LThree-phase non-directional overcurrentprotection, low stagePHLPTOC1 3I> 51P-1Three-phase non-directional overcurrentprotection, high stagePHHPTOC1 3I>> 51P-2Three-phase non-directional overcurrentprotection, instantaneous stagePHIPTOC1 3I>>> 50P/51PNegative-sequence overcurrent protection NSPTOC1 I2> 46Circuit breaker failure protection CCBRBRF1 3I>/I0>BF 51BF/51NBFThree-phase inrush detector INRPHAR1 3I2f> 68Binary signal transfer BSTGGIO BST BSTCircuit breaker control with interlocking CBXCBR I ↔ O CB -Three-phase current measurement CMMXU1 3I 3ISequence current measurement CSMSQI1 I1, I2, I0 I1, I2, I0Transient disturbance recorder RDRE1 - -Table continues on next page1MRS756499 A Section 1IntroductionRED615 11Operation Manual