SMA SUNNY ISLAND 8.0H - Setting Time-Dependent Functions; Setting the Time-Controlled Functions; Setting Load Shedding in a Multicluster System

SMA Solar Technology AG 7 Commissioning
Installation Manual SI80H-60H-OffGrid-IA-en-11 89
7.7 Setting Time-Dependent Functions
Time-dependent functions divide the day into two intervals. You specify the intervals using two start
times. The first interval starts at the first start time and ends at the second start time. The second interval
begins at the second start time and ends at the first start time.
Figure24: Division of the time of day into two intervals
7.8 Setting the Time-Controlled Functions
For time-controlled functions, you set the start time, duration and repetition type.
7.9 Setting Load Shedding in a Multicluster System
The load-shedding contactor in the Multicluster Box is controlled depending on the state of charge of
the batteries.
Significance of the SOC limiting values:
When the state of charge of a battery reaches the lower SOC limiting value, the load-shedding
contactor is opened. The state of charge of the battery of the main cluster and the states of charge of
the batteries of the extension clusters are then evaluated. The load-shedding contactor disconnects the
loads from the stand-alone grid. When the state of charge of all batteries reaches the upper SOC
limiting value during recharging, the load-shedding contactor is closed again. The load-shedding
contactor connects the loads to the stand-alone grid.
Example: Time-controlled operation of a generator
If you want the generator to run every Monday from 07:00 a.m. to 08:00 a.m., set the generator
as follows:
• 235.13 GnTmOpEna: Enable
• 235.14 GnTmOpStrDt: 09.01.2012 (2012-01-09 Monday)
• 235.15 GnTmOpStrTm: 07:00:00
• 235.16 GnTmOpRnDur: 01:00:00
• 235.17 GnTmOpCyc: Weekly