Siemens RMB795B Basic Documentation page 4

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Siemens
Building Technologies
6.2 Select language ......................................................................................40
6.3 Select temperature unit ...........................................................................41
6.4 Operator unit display contrast .................................................................41
6.5 Text entry.................................................................................................41
6.5.1 Device name ...........................................................................................41
6.5.2 File name.................................................................................................41
6.5.3 Electronic business card .........................................................................41
6.5.4 Editable text.............................................................................................42
7 Inputs......................................................................................................43
7.1 Universal inputs (Xx) ...............................................................................43
7.1.1 General settings ......................................................................................43
7.1.2 Activate function......................................................................................43
7.1.3 Cause ......................................................................................................44
7.1.4 Input terminal simulation .........................................................................44
7.1.5 Troubleshooting.......................................................................................45
7.1.6 Functional check / wiring test ..................................................................45
7.2 Analog inputs (Xx) ...................................................................................45
7.2.1 Activation and type..................................................................................45
7.2.2 Measuring range .....................................................................................46
7.2.3 Measured value correction......................................................................46
7.2.4 Connection examples for sensors...........................................................47
7.2.5 Troubleshooting.......................................................................................48
7.2.6 Multiple use of sensors ...........................................................................49
7.3 Digital inputs (Xx) ....................................................................................49
7.3.1 Use and activation...................................................................................49
7.3.2 Normally closed.......................................................................................49
7.3.3 Texts for logical states 0 and 1................................................................49
7.3.4 Connection example ...............................................................................50
7.3.5 Troubleshooting.......................................................................................50
7.4 Pulse .......................................................................................................51
7.4.1 Activate function......................................................................................51
7.4.2 Connection diagram ................................................................................51
7.5 Outside temperature ...............................................................................52
7.5.1 Connection choices.................................................................................52
7.5.2 Outside temperature at terminal..............................................................52
7.5.3 Outside temperature via bus ...................................................................53
7.5.4 Outside temperature simulation ..............................................................53
7.5.5 Troubleshooting.......................................................................................53
7.6 Texts ........................................................................................................54
8 Function block: "Room group"............................................................56
8.1 Overview .................................................................................................56
8.2 Activate function block ............................................................................57
8.3 Room operating modes per room group .................................................58
8.3.1 Room operating mode selector ...............................................................58
8.3.2 Room mode selection via digital inputs...................................................59
8.3.3 Room operating mode selection using room unit QAW740 ....................62
8.3.4 Release room unit QAX3x.x for time switch operating mode Economy .62
8.3.5 7-day time switch ....................................................................................63
8.3.6 Holidays/special days..............................................................................64
8.3.7 Room operating mode outputs................................................................67
8.3.8 Functional check / wiring test ..................................................................69
Central control unit RMB795B
Contents
CE1P3122en
18.01.2012