Parameter Explanation
Start setpoint active power limita-
tion
Lower limit for the setpoint for the active power limitation re-
lated to the inverter parameter Set active power limit or
Pmax
End setpoint active power limita-
tion
Upper limit for the setpoint for the active power limitation re-
lated to the inverter parameter Set active power limit or
Pmax
For reactive power setpoint in %:
Start setpoint reactive power
Lower limit for the setpoint for the reactive power setpoint re-
lated to the inverter parameter Set active power limit or
Pmax
For reactive power setpoint in %:
End setpoint reactive power
Upper limit for the setpoint for the reactive power setpoint re-
lated to the inverter parameter Set active power limit or
Pmax
For setpoint cos Phi:
Cos Phi start setpoint
Lower limit for the setpoint of the displacement power factor
cosφ
For setpoint cos Phi:
Cos Phi end setpoint
Upper limit for the setpoint of the displacement power factor
cosφ
For setpoint cos Phi:
Excitation type
Direction of phase shift
Example of the importance of lower and upper limits for setpoints
4mA is set as the initial value for the active power limitation setpoint and 16mA is set as the end
value for the active power limitation setpoint. If the grid operator sends a signal of 3.5mA to the
ClusterController, the ClusterController then classifies this signal as 4mA because the value of
4mA is set as the lower limit for the active power limitation setpoint. If the grid operator sends a
signal of 17mA to the ClusterController, the ClusterController then classifies this signal as 16mA
because the value of 16mA is set as the upper limit for the active power limitation setpoint.
4 User Interface of the Cluster Controller
SMA Solar Technology AG
User Manual 29ClusterController-BA-en-15
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