Sma 20000TL Bedienungsanleitung PDF herunterladen (Seite 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

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 ManualSTP20-25TL-BE-en-1238

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 51 52

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