SMA SC 500CP-10-JP - Manual (Page 57)

SMA Solar Technology AG 8 Power Control
User Manual SCCP-JP-BA-A4-en-12 57
The analog value is converted into a setpoint for the displacement power factor cos φ. Here, the parameter PFAbsMin
is the starting and end point of the linear characteristic curve.
8.2.1.10 Displacement Power Factor cos φ as a Function of Feed-In Power: PFCtlW Mode
With the PFCtlW mode, the displacement power factor cos φ is set as a function of feed-in power. The dependency is
depicted by a configurable characteristic curve. The characteristic curve can be configured as rising or falling. The start
and end points of the characteristic curve can be set via parameters.
Figure 20: Characteristic curve for reducing reactive power as a function of active power
On the basis of a linear characteristic curve with an upper and lower cap, a displacement power factor cos φ can be
regulated depending on the active power currently being fed in. The start and end points of the characteristic curve can
be configured by means of parameters. The shape of the characteristic curve is determined by the start and end points.
> 19 mA PFAbsMin/overexcited End point of the characteristic curve
Maximum amount of positively excited reactive power is fed in.
Signal Power limit Description