Commissioning
5.6 Function commissioning
SINAMICS V20 Inverter
Operating Instructions, 07/2012, A5E03728167
89
5.6.3.4 Running the inverter 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.
NOTICE
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
max
or V
max
controller is active.
Typical applications
Motors with stable or slowly changing loads
Setting parameters
Parameter Function Setting
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%-120%) applied to the demanded output voltage.
If this value is too low, the system may become unstable.
Function diagram
(&2OLQHDU (&2TXDGUDWLF
(&2
IDFWRU
(&2
IDFWRU
99
II
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