Running The Converter In Economy Mode - Siemens SINAMICS V20 Operating Instructions Manual

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
setpoint. The optimization algorithm becomes active 5 seconds after the setpoint has been
reached, and is disabled on a setpoint change or if the I
Typical applications
Motors with stable or slowly changing loads
Setting parameters
Parameter Function
P1300[0...2] Control mode
r1348 Economy mode factor [%]
Function diagram
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
Setting
= 4: V/f Eco Mode with linear characteristic
= 7: V/f Eco Mode with quadratic characteristic
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.
Commissioning via the built-in BOP
5.6 Function commissioning
or V controller is active.
max max
115