Sungrow SG250HX, Руководство пользователя

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9
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Before enabling the PID recovery function, make sure the voltage polarity of
the PV modules to ground meets requirement. If there are any questions,
contact the PV module manufacturer or read its corresponding user manual.
•
If the voltage scheme for the PID protection/recovery function does not meet
the requirement of corresponding PV modules, the PID function will not work
as expected or even damage the PV modules.
•
Anti-PID function
When the inverter is running, the PID function module rises the potential between the
negative pole of the PV array and the ground to a positive value, to suppress the PID
effect.
Make sure the inverter is applied to an IT system before enabling the anti-PID
function.
•
PID recovery function
When the inverter is not running, the PID module will apply inverse voltage to PV
modules, to restore the degraded modules.
•
If the PID recovery function is enabled, it only works at night.
•
PID recovery function and Q at night cannot be enabled at the same time.
•
After the PID recovery function is enabled, the voltage of the PV string to
ground is 500Vdc by default, and the default value can be modified
through the App.
User Manual 2 Product Introduction