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Building Technologies Basic Documentation LMV5... CC1P7550en
18 VSD module 22.05.2018
18 VSD module
Only LMV50 / LMV51.3 / LMV52
The VSD module is an internal extension to the LMV5 (PBC) and is used for the control
of VSD that ensure safety-related supervision of the fan speed.
2 fuel meters (oil and gas) can be connected as an option.
Counter
Counter
Oil
Release
Speed setpoint 0/4...20 mA
VSD
Sensor
Sensor disk
Actuator oil
7550b12e/0816
Figure 111: Connection of VSD module
The auxiliary actuator can be parameterized on the LMV5, depending on the type of
fuel. The function offers 2 choices: Air damper or VSD.
The Damper act configuration corresponds to the previous function of the LMV51.0 and
LMV51.1.
Parameter Aux Actuator (deactivated / activeDamper / active VSD /
AuxActuator3 / VSD + AuxActuator3)
On the LMV52, the VSD option can be selected in addition to the actuators.
Here, it is also selected whether the VSD shall be used in connection with O2 trim
control.
Parameter VSD (deactivated / activated / air influen)
General
Basic diagram
LMV50/LMV51.3
Configuration of the
LMV5 (BU)
LMV52
configuration of the
LMV5 (BU)