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2 Product Description
The PID effect (Potential Induced Degradation) of PV modules will cause serious damage to
generated output and yield, which can be avoided or recovered by PID recovery function.
•
For positive voltage scheme, after the PID is enabled, the voltage to ground of all PV
strings is greater than 0, and therefore the PV string-to-ground voltage is a positive value.
•
For negative voltage scheme, after the PID is enabled, the voltage to ground of all PV
strings is lower than 0, and therefore the PV string-to-ground voltage is a negative value.
•
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 the corresponding user manual.
•
PID recovery function and reactive power generation at night cannot be enabled
at the same time.
•
If the voltage scheme for the PID protection/recovery function does not meet
the requirement of corresponding PV modules, the PID will not work as ex-
pected or even damage the PV modules.
•
If the PID recovery function is enabled, it only works at night.
•
When the inverter is in the PID recovery state (the indicator blinks blue once at
long intervals and blinks at short intervals for three times), disable the PID re-
covery in the iSolarCloud App before manually powering on and maintaining
the inverter.
AFCI Function
The AFCI function may not be applicable in some areas. Please consult SUN-
GROW for details.
•
AFCI activation
14
User Manual
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