1. 3 . I n ten d ed au d i en c eThis manual is intended for operators and engineers to support normal use ofas well as configuration of the product.1. 4 . P r od u c t d oc u m en tati onIn addition to the relay and this manual, the delivery contains the followingrelay- specific documentation:Table 1.4.-1 REU 610 product documentationNam e D oc u m en t I DCertificate of verification 1MRS081662Installation Manual 1MRS752265-MUMOperator’s Manual 1MRS755770Table 1.4.-2 Other reference documentation for REU 610Nam e D oc u m en t I DModicon Modbus Protocol Reference G uide, Rev. E PI-MBUS-3001. 5 . D oc u m en t c on v en ti on sThe following conventions are used for the presentation of material:* Push button navigation in the human- machine interface ( H M I) menustructure is presented by using the push button icons, for ex ample:To navigate between the options, use and .* H M I menu paths are presented as follows:Use the arrow buttons to select CONFIGURATION\COMMUNICATION\SPA SETTINGS\PASSWORD SPA.* Parameter names, menu names, relay indication messages and relay' s H M Iviews are shown in a Courier font, for ex ample:Use the arrow buttons to monitor other measured values in the menusDEMAND VALUES and HISTORY DATA.* H M I messages are shown inside quotation marks when it is good to pointout them for the user, for ex ample:When you store a new password, the relay confirms the storage byflashing “- - -” once on the display.8REU 610 Voltage RelayTechnical Reference Manual1MRS755769