8 Grid Dispatching Function User Manual
8.2.2.5 Digital Input
When using the analog signal at the DI port of the Data Logger as the dispatching input, set
Reactive Control Mode to Digital Input.
step 1 Click Power Control > Reactive Power to enter the Reactive Power page.
step 2 Set Reactive Control Mode to Digital Input.
step 3
Set DI control parameters.
table 8-10 Parameters description
Parameters Description
Control Method
• Open-Loop Control: At the start time, the reactive power
command is sent to the power output port of the inverter for
reactive power control.
• Closed-Loop Control: At the start time, the reactive
power command is set as the target value, and the reactive
power and power factor are collected by the meter as
input parameters. A closed-loop control algorithm is then
used to calculate the proportional value of reactive power
compensation, which is then sent to the power output port
of the inverter. This method is generally used to improve the
power factor of the property boundary point.
Select Meter* Select a Smart Energy Meter for power regulation
Control Cycle*
Time interval of delivering dispatching commands
Range: 5~60s
Instruction Type
PF: set the power factor as the target value
%: set reactive power percentage
The parameters noted with * refer to the parameters that need to be set only when Control
Method is set to Closed-Loop Control.
Open-Loop Control can set PF, and Closed-Loop Control can only set PF when a
meter or transformer is selected.
step 4
Add digital input manner.
Select the desired DI Port, fill in the PF or Percentage, and click Save.
- - End
Subsequent Operation
86
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