7 Commissioning
SMA Solar Technology AG
Operating manual
89
SI44M-80H-13-BE-en-15
t
SOC
30 %
40 %
80 %
6 a.m.
10 p.m.
12 a.m.
Standard time period
Additional time period
Figure 21: Profile of the SOC thresholds for controlling the load-shedding contactor and the start times for the intervals
The start time for the first interval is set to 6:00 a.m. The lower SOC threshold is set to 40% and the upper SOC
threshold is set to 80% in this time interval.
The start time for the second interval is set to 10:00 p.m. The lower SOC threshold is set to 30% and the upper SOC
threshold is set to 40% in this time interval.
Procedure:
• Set the parameters for the standard time period.
• Set the parameters for the additional time period.
Set the parameters for the standard time period
1. Select
Device > Load shedding 1 > Additional time range
.
2. Set the parameter
Time load shedding 1
to the start time for the standard time period.
3. Set the parameter
Lmt value battery state of charge for start load shedding 1
to the lower SOC threshold
for the standard time period.
4. Set the parameter
Lmt value battery state of charge for stop load shedding 1
to the upper SOC threshold
for the standard time period.
5. Ensure that the parameter of the multifunction relay is set to
1-stage load shedding or 1st stage with 2-stage
load shedding
(see Section 7.10.2, page 102).
Set the parameters for the additional time period
1. Select
Device > Load shedding 1 > Additional time range
.
2. Set the parameter
Start time additional time range load shedding 1
to the start time for the additional time
period.
3. Set the parameter
Limit battery state of charge for stop load shedding 1 in add time range
to the upper
SOC threshold for the additional time period.
4. Set the parameter
Limit battery state of charge for start load shedding 1 in add time range
to the lower
SOC threshold for the additional time period.
5. Ensure that the parameter of the multifunction relay is set to
1-stage load shedding or 1st stage with 2-stage
load shedding
