Country-
spec. Set-
tings
Men
u
level
Display/
Setting
Action in this menu/meaning
Active curve
1 – 4
Up to four characteristic curves can be configured independently and
one of them can be activated for regulation each time.
Reset the curve
Reset active curve to the factory setting, depending of the country set-
ting.
Number of nodes
2 – 10
Specify the number of nodes for the Q(U) characteristic curve.
1st node … 10th node
0V - Max. voltage in
continuous operation
Voltage of the node in volts.
The voltage values of the nodes must increase continuously. At voltages
below the 1st node and voltages above the last node, the reactive
power value of the 1st or last node is used each time.
1 – 0.3
Reactive power of the node as a percentage of the maximum power
Over-excited | under-
excited
Reactive power mode Under-excited relates to inductive load, over-ex-
cited relates to capacitive load.
10.2
Active power regulation
10.2.1
P limit
The function “P limit” is available for limiting the maximum feed-in power. If necessary, this can be used to reduce the
maximum possible feed of an inverter, e.g. for managing bottlenecks for the operator of the distribution grid.
P limit is only available via the MODBUS/SunSpec inverter model 123
Immediate Inverter Controls
and via
RS485 communication. You can find detailed information on the communication protocol at
in
the “Software” subsection of the “Downloads” section.
When a target value is received for P limit, the output power of the inverter is limited to the specified power value. If the
limit value is changed, the new value is adopted by way of a filter and a gradient limitation. The current power may be be-
low the specified limit value because the available power (PV) or the target power value (storage) may be below the spe-
cified limit value. Depending on the inverter series, the settling time and gradient limitation may be adjustable.
Power Limitation
[
WMaxLimPct
]
0 – 100 [%]
Specifies the standard power in the event of a
communication timeout. If no active power/re-
active power command is received within the
configured timeout, the inverter sets the power
to the configured fallback power.
Timeout
[
WMaxLimPct_RvrtTms]
0 – 1000 [s]
Specifies the timeout time after which the in-
verter sets the fallback power in case of a com-
munication failure. This means that the inverter
has not received a new power limit value.
If the timeout is set to 0 seconds, this is suitable
for lasting preservation.
Settling time
[
VArPct_RmpTms]
1000 [ms]
Non-configurable settings 1 s.
10.2.2
Voltage-dependent power reduction P(U)
If it is not possible to compensate adequately for increase in voltage in the upstream distribution network by intake on re-
active power, it may be necessary to curtail the active power. In this case, P(U) control is available for making optimum
use of the capacity of the upstream grid.
Powador 30.0-72.0 TL3
Page 59
EN
