
7/301
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