Siemens LMV51 Series Basic Documentation page 7

Siemens Building Technologies
HVAC Products
Self-setting of control parameters (adaption)........................................ 76
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Adaption sequence ............................................................................... 76
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Checking the control parameters .......................................................... 77
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Example ............................................................................................ 77
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Settling of the manipulated variable...................................................... 78
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Principle ............................................................................................ 78
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Description (graph)............................................................................ 78
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6.4.3 Multistage control .......................................................................................... 79
General ................................................................................................. 79
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Load-dependent activation of the higher burner stages ....................... 79
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Function diagrams ................................................................................ 80
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6.5 Actual values (X) ........................................................................................... 81
Input 1, TEMP, Pt100 sensor (DIN) X60............................................... 81
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Input 2: TEMP. / PRESS INPUT, DC 0...10 V / DC 2...10 V / 4...20 mA
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X61 ....................................................................................................... 81
Measuring range temperature (can be parameterized)..................... 81
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Measuring range pressure (can be parameterized) .......................... 81
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Input 4: TEMP, Pt1000 / LG-Ni 1000 X60............................................. 82
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6.6 Setpoints (W)................................................................................................. 83
Internal setpoint .................................................................................... 83
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Input 3: SET POINT INPUT X62........................................................... 83
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External predefined setpoint ............................................................. 83
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External predefined load ................................................................... 83
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External predefined load, modulating................................................ 83
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External predefined load, multistage................................................. 84
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External setpoint changeover............................................................ 84
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External setpoints or predefined load via digital modbus / e-bus
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interface ................................................................................................ 84
6.7 Integrated temperature limiter function.......................................................... 85
TL within the scope of TRD .................................................................. 85
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TL with external predefined load........................................................... 85
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Requirements placed on sensor and protection pocket........................ 85
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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
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Output, multistage................................................................................. 88
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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
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Connecting cable to the PC .................................................................. 91
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7.2 Ports of the AZL5... ....................................................................................... 92
7.2.1 Port for the PC............................................................................................... 93
7.2.2 Connection to superposed systems .............................................................. 94
Basic Documentation LMV5...
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CC1P7550en
13.08.2004