Siemens LMV5 Series Basic Documentation page 11

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HVAC Products
10 Addendum 2: Connection diagram.......................................................... 234
11 Addendum 3: Variable speed drive (VSD) module ................................. 235
General ............................................................................................... 235
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Basic diagram ................................................................................. 235
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LMV51... Configuration of the basic unit (BU) .................................... 235
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LMV52... configuration of .................................................................... 235
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the basic unit (BU) .............................................................................. 235
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11.1 VSD module (VSD-M) ................................................................................. 236
General ............................................................................................... 236
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11.1.1 Inputs / outputs ............................................................................................ 236
Connection diagram............................................................................ 236
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Release contact X73-1 / -2 ................................................................. 236
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Alarm input X73-3 ............................................................................... 236
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Analog output to.................................................................................. 236
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the VSD X73-4 .................................................................................... 236
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Speed feedback signal ....................................................................... 237
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Speed input X70 ................................................................................. 237
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Safe segregation between mains voltage and protective extra low-
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voltage ................................................................................................ 237
Sensor disk ..................................................................................... 237
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Speed sensor .................................................................................. 237
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Selection of fan motor ..................................................................... 237
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Fuel meter........................................................................................... 238
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Fuel meter input X71 / X72 ................................................................. 238
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11.1.2 Configuration of VSD................................................................................... 238
11.1.3 Configuration of speed acquisition .............................................................. 239
Standardization ............................................................................... 239
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Settling time .................................................................................... 239
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11.1.4 Configuration of current interface ................................................................ 240
11.1.5 Configuration of fuel meter .......................................................................... 240
Pulse value gas............................................................................... 240
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Pulse value oil ................................................................................. 240
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11.1.6 Fuel meter readings..................................................................................... 241
11.1.7 Process data................................................................................................ 241
11.2 Differences to LMV51.200... and LMV51.000 / LMV51.100 ........................ 242
Special functions Curve settings for electronic ratio control ............... 242
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11.3 EMC: LMV5... system – VSD ...................................................................... 243
11.4 Connection terminals................................................................................... 244
11.5 Description of the connection terminals for the variable speed drive
module 246
12 Addendum 4: LMV52... with O2 trim control and O2 module ................ 247
12.1 General........................................................................................................ 247
12.2 Functioning principle of O2 trim control ....................................................... 248
12.2.1 Air rate reduction ......................................................................................... 248
12.2.2 Definition of O2 setpoint .............................................................................. 248
12.2.3 Lambda factor.............................................................................................. 249
12.3 Precontrol .................................................................................................... 250
12.3.1 Calculation of precontrol.............................................................................. 250
Basic Documentation LMV51...
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CC1P7550en
01.10.2003