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Siemens Building Technologies Basic Documentation LMV5... CC1P7550en
HVAC Products 13.08.2004
− Self-setting of control parameters (adaption)........................................76
− Adaption sequence ...............................................................................76
− Checking the control parameters..........................................................77
− Example ............................................................................................77
− Settling of the manipulated variable...................................................... 78
− Principle ............................................................................................78
− Description (graph)............................................................................78
6.4.3 Multistage control ..........................................................................................79
− General ................................................................................................. 79
− Load-dependent activation of the higher burner stages .......................79
− Function diagrams ................................................................................ 80
6.5 Actual values (X) ...........................................................................................81
− Input 1, TEMP, Pt100 sensor (DIN) X60...............................................81
− Input 2: TEMP. / PRESS INPUT, DC 0...10 V / DC 2...10 V / 4...20 mA
X61 .......................................................................................................81
− Measuring range temperature (can be parameterized)..................... 81
− Measuring range pressure (can be parameterized) ..........................81
− Input 4: TEMP, Pt1000 / LG-Ni 1000 X60.............................................82
6.6 Setpoints (W).................................................................................................83
− Internal setpoint .................................................................................... 83
− Input 3: SET POINT INPUT X62........................................................... 83
− External predefined setpoint .............................................................83
− External predefined load ...................................................................83
− External predefined load, modulating................................................83
− External predefined load, multistage.................................................84
− External setpoint changeover............................................................ 84
− External setpoints or predefined load via digital modbus / e-bus
interface ................................................................................................84
6.7 Integrated temperature limiter function..........................................................85
− TL within the scope of TRD ..................................................................85
− TL with external predefined load...........................................................85
− Requirements placed on sensor and protection pocket........................85
6.8 Cold start thermal shock protection (CSTP) .................................................. 86
6.8.1 CSTP – modulating operation .......................................................................86
6.8.2 CSTP – multistage operation.........................................................................87
6.8.3 CSTP with temperature sensor in pressure plants ........................................ 87
6.9 Output............................................................................................................88
6.9.1 Output 4...20 mA ...........................................................................................88
− Output, modulating ...............................................................................88
− Output, multistage.................................................................................88
6.10 Multiboiler plants............................................................................................ 88
6.10.1 Multiboiler plants by means of an analog input .............................................88
6.10.2 Multiboiler plants by means of a digital interface...........................................88
7 Display and operating unit AZL5... ............................................................89
7.1 Assignment of AZL5… terminals ................................................................... 90
− Connecting cable to the e-bus adapter.................................................91
− Connecting cable to the PC ..................................................................91
7.2 Ports of the AZL5….......................................................................................92
7.2.1 Port for the PC...............................................................................................93
7.2.2 Connection to superposed systems ..............................................................94
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