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3.2.2 DRM (“AU”/“NZ”)
The inverter provides a terminal block for connecting to a demand response enabling
device (DRED). The DRED asserts demand response modes (DRMs). The inverter de-
tects and initiates a response to all supported demand response commands within 2s.
The following table lists the DRMs supported by the inverter.
table 3-1
Demand Response Modes (DRMs)
M
Mo
od
de
e
E
Exxp
plla
an
na
attiio
on
n
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 sub-
ject to the constraints from other active DRMs.
DRM5
The feed-in power to the grid is 0.
DRM6
The feed-in power to the grid is no more than 50 % of the rated power.
DRM7
The feed-in power to the grid is no more than 75 % of the rated power.
DRM8
The feed-in 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 or-
der in response to multiple DRMs.
M
Mu
ullttiip
plle
e M
Mo
od
de
ess
P
Prriio
orriittyy O
Orrd
de
err
DRM1…DRM4
DRM1 > DRM2 > DRM3 > DRM4
DRM5…DRM8
DRM5 > DRM6 > DRM7 > DRM8
3.2.3 Regular Operational Voltage Range
The inverters can operate within the allowable voltage range for at least the specified
observation time. The setting of the conditions depends on whether the connection is
due to a normal operational start-up or an automatic reconnection after tripping of the
interface protection.
When the voltage level is out of the operational levels, the inverter will disconnect from
the grid within the protection time. If a disturbance lasts less than the required protection
time, the inverter can reconnect to the grid once the voltage level goes back to normal
levels after the disturbance.
User Manual
