User Manual
18
Tab. 3-1
Demand Response Modes (DRMs)
Mode
Explanation
DRM0
The inverter is in the state of “Turn off”.
DRM1
The import power from the grid is 0.
DRM2
The import power from the grid is no more than 50 % of the rated power.
DRM3
The import power from the grid is no more than 75 % of the rated power.
DRM4
The import power from the grid is 100 % of the rated power, but subject
to the constraints from other active DRMs.
DRM5
The export power to the grid is 0.
DRM6
The export power to the grid is no more than 50 % of the rated power.
DRM7
The export power to the grid is no more than 75 % of the rated power.
DRM8
The export power to the grid is 100 % of the rated power, but subject to
the constraints from other active DRMs.
The DRED may assert more than one DRM at a time. The following shows the
priority order in response to multiple DRMs.
Multiple Modes
Priority Order
DRM1…DRM4
DRM1 > DRM2 > DRM3 > DRM4
DRM5…DRM8
DRM5 > DRM6 > DRM7 > DRM8
3.2.3 Reactive Power Regulation
The inverter is capable of operating in reactive power regulation modes for the
purpose of providing support to the grid. These various operating modes can be
enabled or disabled via the LCD menu. For details, see “
”.
PF
: Fixed power factor mode.
Qt
: Fixed reactive power mode.
Q(p)
: The PF of the inverter output varies in response to the output power of
the inverter.
Q(u)
: The reactive power output of the inverter varies in response to the grid
voltage.
3.2.4 Active Power Response
The inverter supports two power quality response modes, which can be set via
the LCD menu. For details, see “
”.
Volt-watt:
Define the response curve with four grid reference voltages. The inverter
power output or input will vary in response to the grid voltages.
