Solare Datensysteme Solar-Log - Manual (Page 112)

112
Configuring Notifications
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Enter the monitoring end
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Enter the Minimum amount of feed-in power
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Enter the Deviation as a percentage
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Enter the fault duration in intervals
This indicates how long a fault should be continuously present, before it is recognized as a fault. The
minimum fault duration is 5 minutes, but a longer one should be selected.
An interval corresponds to 5 minutes. The fault duration is determined by the number of intervals en-
tered and display under the input box.
Enter the Maximum number of message to be sent per day
So that malfunctions are not reported too often, a maximum number of messages per day can be
defined.
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Maximum number of messages per day
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Snow cover
False messages may occur if the unit is covered in snow. These are messages from the power compari-
son that occur if modules are partially covered, or failure messages if the inverter is no longer switched
on because it is fully covered by snow.
There are two ways to minimize this problem:
The minimum percentage value above which power monitoring starts should be set as high as possi-
ble, e.g. 30%. For example, if the generator power is 4500 Wp, power monitoring will start only at 1350
watts. The partly shaded modules reduce the power from the unshaded modules so that the required
1350 watts is rarely or never reached. This is how the problem of partial covering is resolved.
Failure messages are always sent when the inverter is not working or when it is not online at times that
have been configured as unshaded. It is then assumed that there is a fault. Complete snow covering
would therefore be reported as a failure. To solve this problem, check the box for snow coverage. If
the box is checked, no failure message is sent if all of the inverters are offline. This is not taken into
account in the period from 01 November to 30 April. Outside of this period, the snow covering func-
tion is automatically disabled. Monitoring then works as usual and also reports complete failures of all
of the inverters.
Note
For PV plants with only one inverter, an inverter failure notification is sent even when the
snow cover parameter is active.
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Select Message as
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Activate required options and enter values.
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SAVE settings .
In the Save menu, there are three different options:
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SAVE
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SAVE MULTIPLE
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SAVE ALL
Save
When using this button, the settings for the device selected as the device are saved.
Save multiple
When using this button, a selection box appears from which other devices can be added by checking them.