Siemens LMV37.400A2 - Page 213

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Building Technologies Basic Documentation LMV37.4... CC1P7546en
HVAC Products 01.12.2009
Figure 36: Shifting multistage operation (OPEN ▲ terminal 3 / CLOSE ▼ terminal 2) 73
Figure 37: External load controller via analog input X64.1 / X64.2................................. 76
Figure 38: Definition of curves ........................................................................................... 80
Figure 39: Restriction of modulation range ....................................................................... 82
Figure 40: Adjustment of output......................................................................................... 85
Figure 41: Actuator fuel (X54)............................................................................................ 88
Figure 42: Actuator air (X53).............................................................................................. 88
Figure 43: Angle definitions with SQM33… ...................................................................... 91
Figure 44: Direction of rotation (example SQM3…) ......................................................... 92
Figure 45: Function principle of VSD................................................................................. 96
Figure 46: Connection of VSD to the LMV37.4... ............................................................. 97
Figure 47: Sensor disk........................................................................................................ 99
Figure 48: Speed sensor..................................................................................................100
Figure 49: VSD module X74 ............................................................................................107
Figure 50: PWM fan X74 ..................................................................................................107
Figure 51: PWM fan X64 ..................................................................................................107
Figure 52: Fuel meter input X75 ......................................................................................110
Figure 53: Inputs and outputs ..........................................................................................112
Figure 54: Connection via interface COM 92 to superposed systems..........................113
Figure 55: Communication with display / BCI (RJ11 jack) (X56) ..................................116
Figure 56: Display input / BCI (RJ11 jack) X56 ..............................................................116
Figure 57: Description of the unit / display and buttons .................................................120
Figure 58: Meaning of display..........................................................................................121
Figure 59: Assignment of levels.......................................................................................134
Fig. 60: Info level...............................................................................................................135
Figure 61: Service level....................................................................................................139
Figure 62: Setting the curvepoints...................................................................................166
Figure 63: Changing several curvepoints........................................................................172
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