Application parameter group 10
PARAMETER DESCRIPTION 257
5.11.7 Forward and reverse rotation dead time
During the process of inverter output forward -reverse transition, set the transition time at 0Hz.
Parameter
Name
Default Setting Range
Content
10-16
P.119
Forward and reverse
rotation dead time
0.0s
0
Off.
0.1~3000.0s
Waiting and holding time during forward -reverse switch,
after inverter output frequency drops to zero
Dead time of forward -reverse rotation
Dead time of forward -reverse rotation refers to the waiting and holding time of inverter. During this period of time,
inverter will transit from the current direction to the reverse direction upon receiving a reverse run command, and
its output frequency will drop to zero.
The diagram is as follows:
Output
frequency
The positive rotation
The reverse rotation
Time
The dead time of
positive and
reverse rotation
5.11.8 Energy-saving function
V/F
In energy-saving mode, in order to minimize inverter output power in constant speed operation, inverter will
automatically control the output voltage.
Parameter
Name
Default Setting Range
Content
10-17
P.159
Energy-saving control
function
0
0
Off.
1
Energy-saving mode.
Energy-saving mode
In energy-saving mode, in order to minimize inverter output power in constant speed operation, inverter will
automatically control the output voltage.
Note:
1. This function is only valid in V/F mode (00-21(P.300)=”0”).
2. If selecting energy-saving operation mode, deceleration time may be longer than the set value.
In addition,
compared with constant torque load , over-voltage will more likely to occur, please set the deceleration time
relatively longer.
3. For heavy-duty applications or frequent acceleration and deceleration machines, the energy saving effect may
not be very good.
Setting
Setting
Содержание SA3 Series
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