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Description of parameters
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5
P2.14.4.2 DIN Controlled ID
ID15719
“Controlled ID”
Select a parameter ID controlled by ID1570.
P2.14.2.3 Value for Low digital input (FALSE)
ID1572
“FALSE Value”
P2.14.3.3 Value for Low digital input (FALSE)
ID1592
“FALSE Value”
P2.14.4.3 Value for Low digital input (FALSE)
ID15794
“FALSE Value”
Set the controlled parameter value when the digital input (ID1570) is LOW for the
parameter selected by ID1571. The function does not recognise decimals. For example,
give the value 10.00 Hz as
1000
.
P2.14.2.4 Value for High digital input (TRUE)
ID1573
“TRUE Value”
P2.14.3.4 Value for High digital input (TRUE)
ID1593
“TRUE Value”
P2.14.4.4 Value for High digital input (TRUE)
ID1596
“TRUE Value”
Set the controlled parameter value when the digital input (ID1570) is HIGH for the
parameter selected by ID1571. The function does not recognise decimals. For example,
give the value 10.00 Hz as
1000
.
5.15
Grid voltage PI controller
The PI controller is meant to help keep the line voltage constant when the load changes. The OPT-D7
option board is necessary. The PI controller controls the field weakening voltage point to keep a
constant voltage on the line. You can use this function only in the Island mode.
When OPT-D7 board is not used, it is possible to use Analogue Input 3 and 4 ID write function to give
the grid the Line Frequency D7 (ID1654) and Line Voltage D7 (ID1650). This enables use of grid PI
voltage controller without the OPT-D7 board. Note that both line frequency and line voltages needs
to be given.
P2.15.1
PI
Activation
ID1807
Select the digital input that will activate the PI controller. Set selection to 0.2 and the PI
controller is activated without an external wiring.
P2.15.2
PI Controller Gain
ID118
This parameter defines the gain of the PID controller. If the value of the parameter is set
to 100%, a change of 10% in the error value causes the controller output to change by
10%. If the parameter value is set to
0
, the PID controller operates as an I controller.
P2.15.3
PI Controller I-time
ID119
The parameter ID119 defines the integration time of the PID controller. If this parameter
is set to 1.00 second, a change of 10% in the error value causes the controller output to
change by 10.00%/s. If the parameter value is set to
0.00 s
, the PID controller will
operate as a P controller.