Speed Control - Siemens LMV36.520A1 Basic Documentation

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Building Technologies Division
Infrastructure & Citiies Sector

13.8 Speed control

The LMV36... controls the fan motor's speed to the setpoint. To ensure that the speed
can still be increased when the maximum speed is reached, the speed is standardized
when the motor is controlled at 95%. Hence, with a speed setpoint of 100%, a speed
increase of 5% is still possible.
The control range of the LMV36... is +15% / -10%. If this range is not sufficient, error 80
or 83 can occur.
Error Diagnostic code
code
80 1
2
Note
Internal control with a VSD or PWM fan motor must not be activated. Otherwise,
speed variations can occur, resulting from simultaneous control actions from both the
basic unit and internal control.
Basic documentation LMV36...
13 Fan control
Meaning for the LMV36... system
Control range limitation at the bottom
Control range limitation at the top
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CC1P7544en
25.09.2013