String alarms

String alarms reflect outages of single strings of a string combiner box or inputs for string inverters. You can also set the severity and delay.

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Example

In this example, when at least one string of the string combiner box measures more than 10% of its nominal current during the daytime, the other strings are considered outages when they measure no current.

Note

For systems equipped with string combiner boxes, if all strings of one combiner box are outages, all the string alarms are grouped into a single string alarm. This minimizes the overall number of alarms and creates maximum transparency for the user.

Set up string alarms

If your system uses string monitoring, follow these steps to set up your alarms:

1. On the sidebar at the system level, hover over the system for which you want to set up a string alarm.

2. Select the Wrench icon. This takes you to the system configuration. 

3. Check that string monitoring is activated: Select the Data sources tab and click on Current sensors in the sidebar.  

4. Select the Monitoring tab and select the String alarm dropdown.

5. Set the severity and trigger criteria and select Save.