User Manual
10
PID function
After the PID function is enabled, the voltage to ground of all PV modules is
greater than 0, that is, the PV module-to-ground voltage is a positive value.
PV moudle
Rise the to-ground electromotive force
at the negative pole of the PV moidle
Inverter
Transformer
Grid
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.
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.
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.
