OverFrequenceDerate
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StartPoint 50.50Hz
StopPoint 51.50Hz
RecoverPoint 50.1Hz
RecoverGradient 1.00%
RecoverDelay 0S
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This series inverter provides “over-frequency response” func�on.
Long pressing the “OFD Derate” to enter the “over-frequency response” se�ng menu.
MENU》Setup》Run Param
OK
Cancel
ARC OFF
OFDerate ON
UFUprate OFF
PU OFF
WGra 20.0%
Sunspec OFF
Vref 220.0V
For example,
StartPoint
: 50.5Hz,
StopPoint
:
51.5Hz,
RecoverPoint
: 50.1Hz, when the grid
frequency increases beyond
StartPoint
: 50.5Hz, the inverter will linearly reduce the
power output with a gradient of 100%
Pmax/Hz un�l it reaches
StopPoint
: 51.5Hz .
Frq-Watt Mode for Over-frequency Conditions
50.0 50.1 50.2 50.3 50.4 50.5 50.6 50.7 50.8 50.9 51.0 51.1 51.2 51.3 51.4 51.5 51.6 51.7 51.8 51.9 52.0
RecoverPoint
StartPoint
StopPoint
Rated
Output
Power(kW)
Grid Frequency(Hz)
Hysteresis mode
8.5.2.1 Over-frequency Response
DRM OFF
PowerLimit
VoltageRT
Sunspec OFF
Definition of Over-
frequency Response Parameters
StartPoint
StopPoint
RecoverPoint
RecoverGradient
Description
Range
RecoverDelay
Parameter
45HZ-65HZ
45HZ-65HZ
45HZ-65HZ
0.3%¬300% P/min
0-1000s
The Start frequency value for over-frequency response.
The Stop frequency value for over-frequency response.
Ramp rate of power recovery
In hysteresis mode, power is restored only when it is below
this frequency
Time Delay of power recovery in hysteresis mode