Pid Function (Optional); Pid Repair Function - Soleil SRT 75K User Manual

Figure2-11 WIFI/GPRS monitoring solution
The APP can build communication between WIFI or GPRS wireless communication module and
inverter. Via APP, the near-end and far-end maintenance and monitor of the inverter can be executed.
User can query the inverter information, alarm, event and set the parameters by the APP.
Download and installation requiring the APP from service@sielups.com.

2.4.3 PID Function (Optional)

If PID function is configured and enabled, during inverter operation the voltage of all PV strings to
ground is kept greater than zero, i.e. the voltage of all PV strings to ground is positive voltage status.
⚫ Before enable PID protection or repair function, please pay attention to the polarity requirement
for the voltage of different PV string to ground. If any question, please contact the manufacturer of
PV string or read the user manual of PV string.
⚫ When the type of PV string mismatches the voltage scheme of PID protection or repair function,
the PID function will not reach the expected effect and even cause harmful influence on PV strings.

2.4.4 PID repair function

When the inverter is not in operation, the PID function module add reverse voltage to PV strings, in
order to repair the PV strings where the PID effect has occurred.
IV438E REV.01 Issued: 2022/11/09 User Manual Soleil SRT/SPX 75K-150K Pag. 20 of 74 +FR