Huawei SUN2000-100KTL Series User Manual page 89

SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual
Parameter
Built-in PID compensation
direction
String connection mode
Automatic OFF due to
communication interrupted
Automatic ON due to
communication resumed
Communication interruption
duration (min)
Issue 07 (2020-09-15)
Description
When the solar inverter generates reactive power at night, an
external PID compensation device (such as the anti-PID
module) is required to perform PID compensation for the
system. In addition, this parameter must be correctly set for
the solar inverter.
The solar inverter can generate reactive power at night only
when it detects that the value of this parameter is the same as
the compensation direction of the external PID compensation
device.
● If no PID compensation device exists in the system, set this
parameter to Output disabled.
● When the system uses the PID compensation device to
increase the voltage of PV– with respect to ground to a
value greater than 0 V, set this parameter to PV- positive
offset.
● When the system uses the PID compensation device to
decrease the voltage of PV+ with respect to ground to a
value less than 0 V, set this parameter to PV+ positive
offset.
Specifies the connection mode of PV strings.
● When PV strings connect to the solar inverter separately
(fully separate connection), you do not need to set this
parameter. The solar inverter can automatically detect the
connection mode of the PV strings.
● When PV strings connect to one another in parallel outside
the solar inverter and then connect to it independently
(fully parallel connection), set this parameter to All PV
strings connected.
The standards of certain countries and regions require that the
inverter must shut down after the communication is
interrupted for a certain time.
If Automatic OFF due to communication interrupted is set
to Enable and the inverter communication is interrupted for a
specified time (set by Communication interruption
duration), the inverter will automatically shut down.
If this parameter is set to Enable, the inverter automatically
starts after communication recovers. If this parameter is set to
Disable, the inverter needs to be started manually after
communication recovers.
This parameter is displayed when Automatic OFF due to
communication interrupted is set to Enable.
Specifies the duration for determining communication
interruption. Used for automatic shutdown for protection in
case of communication interruption.
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