SMA 20000TL - Manual (Page 38)

☐ The total installed PV power must be known.
☐ The active power feed-in specified by the grid operator must be known.
Procedure:
1. Ensure that the firmware version of the inverter is at least 2.81.07.R. If necessary, carry out a
firmware update.
2. Select the parameter Fallback act power lmt P in % of WMax for absent act power lmt
and set the required percentage.
3. Select the parameter Operating mode for absent plant control and set to Use fallback
setting.
8.5 Reducing the Attenuation of Ripple Control Signals
By setting certain parameters, the attenuation of three-phase parallel ripple control frequencies
ranging from 1,000 Hz to 1,100 Hz can be avoided. The parameters must only be set in
consultation with the responsible grid operator.
The basic procedure for changing operating parameters is explained in another section (see
Section 8.3 "Changing Operating Parameters", page 37).
Requirement:
☐ The firmware version of the inverter must be at least 2.81.07.R.
Procedure:
• Set the following parameters:
Parameter
name for
RS485 Parameter name for
BLUETOOTH or Speedwire/We-
bconnect Unit Range Value to be set
RplDet-NBS-Gain Ripple control signal detection, am-
plification of narrow-band backup
V/A 0 to -10 -9
RplDet-NBS-
Damp Ripple control signal detection, at-
tenuation of narrow-band backup p.u. - 0.1
RplDet-NBS-Hz Ripple control signal detection, fre-
quency of the narrow-band backup Hz 1,000
to
1,100 Must be specified
by the grid oper-
ator
8.6 Setting SMA OptiTrac Global Peak
For partially shaded PV modules, you should set the interval at which the inverter is to optimize the
MPP of the PV system.
The basic procedure for changing operating parameters is explained in another section (see
Section 8.3 "Changing Operating Parameters", page 37).
8 Configuration SMA Solar Technology AG
Operating Manual STP20-25TL-BE-en-12 38