Built-In Pid Recovery - Huawei SUN2000-75KTL Series User Manual

SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual
Parameter
RS485-2 communication
Tracker controller
Duration for determining short-
time grid disconnection (ms)
AFCI
Auto recovery from string-to-
ground short-circuit protection
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7.1.4.4 Built-in PID Recovery

Ensure that the inverter ground cable is securely connected. Otherwise, the built-in
PID repair function will be affected and electric shocks may occur.
Working Principle
When the SUN2000 is disconnected from the network, the built-in PID can repair
the PV– positive offset. (PV– positive offset refers to raising the voltage between
PV– and the ground to above 0 V through voltage compensation.) When designing
a PV plant, confirm with the PV module manufacturer that the anti-PID voltage
compensation direction of the PV module is the PV– positive offset. Otherwise, PV
modules may be damaged.
Procedure
Step 1 Choose Settings > Feature Parameters. The parameter setting screen is displayed.
Issue 15 (2023-01-31)
Description
If this parameter is set to Enable, the RS485-2 port can be
used. If the port is not used, you are advised to set this
parameter to Disable to reduce power consumption.
Selects a controller vendor.
The standards of certain countries and regions require that the
inverter should not disconnect from the power grid if the
power grid experiences a short-time failure. After the fault is
rectified, the inverter output power needs to be quickly
restored.
The North American standard requires that the inverter should
have DC arc detection function.
● If this parameter is set to Enable, the String Short-
Circuited to Ground alarm is automatically cleared after
fault recovery.
● If this parameter is set to Disable, the String Short-
Circuited to Ground alarm cannot be automatically
cleared. You need to manually clear the alarm.
NO TICE
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