ABB SACE SACE PR010/T RH0029002 L2551 52/67 6714.6.2 Local bus unitFrom the CONFIGURATIONS menu it is possible to set the parameters for operation of therelease unit on the local bus, selecting:At this point it is possible to choose one of the following items:1. Presence2. Release 13. Release 24. Release 35. Release 46. Release 67. Release 78. Release 8Selecting "Presence" sets the presence/absence of a unit on the local bus.Selecting Release x the configuration parameters of release x on the local bus unit are read/set, forexample selecting:The setting of the activation signal of release no. 3 is displayed; pressing the ENTER keylaunches editing mode (the cursor starts blinking); the setting of the activation signal is changedusing the keys and Î.If "Custom" is selected, when ENTER is pressed the current setting is displayed, for example:Key to bepressedItem selected1 Operation modex PR121/P4 Config./Parameters1 Configurations3 Local bus unit... ...Key to bepressedItem selected... ...4 Release 31 SourceALARM 1 4...6→ L Pre-alarmL Timing→ S Timing