• The chapter “Reset” describes resetting procedures.• The chapter “Authorization”describes user categories and password procedures.• The chapter “Glossary” describes words and acronyms used in the literaturedescribing the IED.This manual does not contain any instructions for commissioning or testing.1.1.3 Intended audienceGeneralThe operator’s manual addresses the operator, who operates the IED on a daily basis.RequirementThe operator must be trained in and have a basic knowledge of how to operateprotection equipment. The manual contains terms and expressions commonly usedto describe this kind of equipment.1.1.4 Related documentsDocuments related to RES670 Identity numberOperator’s manual 1MRK 511 251-UENInstallation and commissioning manual 1MRK 511 252-UENTechnical reference manual 1MRK 511 250-UENApplication manual 1MRK 511 253-UENProduct guide pre-configured 1MRK 511 266-BENConnection and Installation components 1MRK 513 003-BENTest system, COMBITEST 1MRK 512 001-BENAccessories for 670 series IEDs 1MRK 514 012-BEN670 series SPA and signal list 1MRK 500 092-WENIEC 61850 Data objects list for 670 series 1MRK 500 091-WENEngineering manual 670 series 1MRK 511 240-UENCommunication set-up for Relion 670 series 1MRK 505 260-UENMore information can be found on www.abb.com/substationautomation.1MRK511251-UEN B Section 1Introduction11Operator's manual