User Manual of EM730/EM730E Series Inverter
191
suppression cutoff
frequency
This parameter can be adjusted to suppress motor oscillations during the open loop control
(VVF). When the motor does not oscillate, this parameter should not be adjusted as little as
possible or properly reduced. If the motor oscillates obviously, this parameter can be increased
properly.
Function
code
Function code
name
Parameter description
Unit
Default
setting
Attribute
F05.15
Droop control
frequency
0.00 - 10.00
Hz
0.00
●
This function is usually applied for load distribution when one load is driven by multiple
motors.
Droop control is to reduce the output frequency of the inverter with the load increasing, so
that the output frequency of the motor drops more in the load driven by multiple motors, thus
reducing the load on this motor and leading to evener distribution of the load on multiple
motors.
This parameter refers to the output frequency drop of the inverter under the rated load.
Function
code
Function code name Parameter description
Unit
Default
setting
Attribute
F05.16 Energy saving rate
0.00 - 50.00
%
0.00
●
F05.17
Energy saving action
time
1.00 - 60.00
s
5.00
●
The energy saving rate (F05.16) reflects the energy saving capacity. The larger the set value,
the more energy will be saved. If the set value is 0.00, energy saving will be invalid.
When energy-saving operation is valid, energy saving control will be enabled once the
energy saving conditions are met and have been maintained for the energy saving time (F05.17).
The default settings of the VF control optimization parameters of the synchronous motor
are used under normal circumstances.
On the basis of the VF separation voltage source setting, the set value of F05.20 changes at
intervals of one minute in the power supply setting.
7.7
Vector Control Parameter Group of F06 Group
Function
code
Function code name
Parameter description
Unit
Default
setting
Attribute
F06.00 Speed proportional gain 0.00-100.00
12.00
●
