Siemens LMV5 Series Basic Documentation page 12

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HVAC Products
12.4 O2 trim control .............................................................................................251
12.4.1 Operating modes of O2 trim controller / O2 monitor ....................................251
12.4.2 Load limitation with O2 trim control..............................................................252
12.4.3 Startup .........................................................................................................252
12.4.4 Heating up the O2 sensor after «PowerOn»................................................252
12.4.5 Initialization of O2 trim controller..................................................................253
12.4.6 Behavior in the event of load changes.........................................................253
12.4.7 Control interventions by the O2 trim controller.............................................253
12.5 O2 monitor ...................................................................................................254
12.5.1 Delayed O2 min. value.................................................................................254
12.5.2 Switch-off criteria .........................................................................................254
12.6 Self-test........................................................................................................255
12.6.1 Sensor test...................................................................................................255
12.6.2 Checking the O2 content (20.9 %)...............................................................256
12.7 Auxiliary functions ........................................................................................257
12.7.1 Warning when flue gas temperature is too high...........................................257
12.7.2 Combustion efficiency..................................................................................257
12.8 O2 module ...................................................................................................258
12.8.1 Inputs and outputs .......................................................................................258
12.8.2 CAN bus X84, X85.......................................................................................261
12.9 Configuration of O2 module .........................................................................261
12.10 Configuration of the system .........................................................................262
12.10.1 Actuators / VSDs..........................................................................................262
12.10.2 Parameterization of the type of fuel .............................................................262
12.10.3 Setting the user-defined type of fuel ............................................................263
Preset fuel parameters ...................................................................263
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12.11 Commissioning the O2 trim control system .................................................264
12.11.1 Setting ratio control ......................................................................................264
12.11.2 Setting the O2 monitor .................................................................................264
12.11.3 Direct entry of O2 min. values......................................................................265
12.11.4 Measuring the O2 min. values by lowering the air rate................................265
12.11.5 Setting O2 trim control .................................................................................266
12.11.6 Checking and changing the controller parameters ......................................267
12.12 Setting notes ................................................................................................268
12.12.1 Parameter settings.......................................................................................268
12.12.2 Setting O2 ratio control ................................................................................268
12.12.3 Setting the O2 trim controller .......................................................................270
12.12.4 Other notes ..................................................................................................270
12.13 Technical data..............................................................................................271
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Basic unit LMV52...........................................................................271
PLL52.x ...............................................................................................271
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Environmental conditions ................................................................271
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12.14 Terminal ratings, line lengths and cross-sectional areas .............................272
Basic unit LMV52... .............................................................................272
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PLL52... ...............................................................................................272
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Analog inputs...................................................................................272
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13 Dimensions.................................................................................................272
Basisdokumentation LMV5... CC1P7550en
01.10.2003