SMA SI 3.0-11 Installation - Manual (Page 92)

9 Supplementary Information SMA Solar Technology AG
92 SI30M-44M-60H-80H-IA-en-30 Installation Manual
9 Supplementary Information
9.1 Entering the SMA Grid Guard Code
Depending on the configuration, safety-relevant parameters are protected by the SMA Grid Guard code from
unauthorized changes. You can unlock the parameters by entering the SMA Grid Guard code.
Procedure:
1. Contact the SMA Service Line and apply for a personal SMA Grid Guard code.
2. Switch to expert mode on the Sunny Remote Control (see the Sunny Island inverter operating manual).
3. Select the parameter 270.01 Auth.Code and set the SMA Grid Guard code.
☑ Safety-relevant parameters can now be changed.
9.2 Determining the Battery Capacity
Manufacturers state the battery capacity depending on the discharge time. In the configuration of the off-grid system and
in the QCG, you always enter the battery capacity for a 10-hour electric discharge (C10).
Procedure:
• Determine the battery capacity C10 specified by the battery manufacturer.
☑ You could determine the battery capacity C10.
✖ You could not determine the battery capacity C10?
• Estimate the battery capacity C10 from other discharge times. This will provide a value that is probably
sufficient for commissioning.
• Contact the battery manufacturer, request the C10 battery capacity and set the correct battery capacity in
the QCG as soon as possible. To do this, proceed as if you had replaced the battery (for battery replacement
see the Sunny Island inverter operating manual).
9.3 Setting Time-Dependent Functions
Time-dependent functions, such as time-dependent load shedding, split the day into two intervals. You specify the intervals
using two points in time. The first interval starts with point in time 1 and ends with point in time 2. The second interval starts
with point in time 2 and ends with point in time 1.
Figure 27: Division of the time of day into two intervals
Discharging time Estimation
120 h (C120) C10 = C120 ⁄
1.28
100 h (C100) C10 =
C100
⁄
1.25
20 h (C20) C10 = C20 ⁄
1.09
10 h (C10) C10 = C10
5 h (C5) C10 =
C5
⁄
0.88
1 h (C1) C10 =
C1
⁄
0.61