Commissioning via the built-in BOP
5.6 Function commissioning
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
115
5.6.3.4 Running the converter in economy mode
Functionality
Economy mode works by slightly changing the output voltage either up or down in order to
find the minimum input power.
Note
The economy mode optimization is only active when operating at the requested frequency
set
point. The optimization algorithm becomes active 5 seconds after the setpoint has been
reached, and is disabled on a setpoint change or if the I
max
or V
max
controller is active.
Typical applications
Motors with stable or slowly changing loads
Setting parameters
P1300[0...2] Control mode = 4: V/f Eco Mode with linear characteristic
= 7: V/f Eco Mode with quadratic characteristic
r1348 Economy mode factor [%] This parameter displays the calculated economy mode factor (range: 80% to
120%) applied to the demanded output voltage.
If this value is too low, the system may become unstable.
Function diagram
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