VOLTWERK SmartConnect 8 Instrucciones De Servicio página 129

7 Commissioning
Result
52
2. Measure every string current. Note the following:
Measurement is only possible when the central inverter is providing
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the power supply.
All string currents are the same.
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The irradiation conditions may change during the measurement,
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hence also causing the current values to fluctuate.
All string currents must flow in the same direction.
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In the event of negative string currents (reverse currents) < -1 A, the
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device switches off.
3. Check the plausibility of all measured string currents. Note the
following:
The measured current depends, for example on
the solar module type,
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the type of input configuration (for double-allocation of inputs, there
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are double the string currents),
the irradiation conditions,
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the inclination angle of the solar modules.
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If I = 0 A
Wiring fault, check the wiring.
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Faulty solar module, check the solar module.
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Relay fault, restart the device (see Chapter 10.1, page 67).
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4. Compare the size of the measured values with the values from the
monitoring system.
The monitoring system lists the current for each input. From this data,
you can see which input is allocated with how may strings according
to the monitoring system. This input configuration must correspond to
the actual wiring.
The string connections have been checked.
Using the device with a monitoring unit
If you use a monitoring system, you also have additional function checks.
For more details, refer to the technical documentation for the monitoring
system.
SmartConnect
Operating manual