7 Parameter Description SV600 Series User Manual
142
If the PID feedback is smaller than the value of PA-26 and the lasting time exceeds the value of
PA-27, the inverter reports Err31 and acts according to the selected fault protection action.
Function
code
Name
Setting range
Default
Property
PA-28
PID operation at stop state
0: No PID operation at stop
1: PID operation valid at stop
1
☆
It is used to select whether to continue PID operation in the state of stop. Generally, the PID
operation stops when the inverter stops.
Group Pb: Swing frequency, fixed length and count functions
The swing frequency function is applied to the textile and chemical fiber fields and the
applications where traversing and winding functions are required.
The swing frequency function indicates that the output frequency of the inverter swings up and
down with the set frequency as the center. The trace of running frequency at the time axis is
shown in the following figure.
Fig.7-29 Swing function setting
Function
code
Name
Setting range
Default
Property
Pb-00
Swing frequency setting method
0:Relative to center frequency
1: Relative to maximum frequency
0
☆
This parameter is used to select the base value of the swing amplitude.
0: Relative to the central frequency
(P0-07 frequency source selection)
It is variable swing amplitude system. The swing amplitude varies with the central frequency (set
frequency).
1: Relative to the maximum frequency
(P0-10 maximum output frequency)
It is fixed swing amplitude system. The swing amplitude is fixed.
Function
code
Name
Setting range
Default
Property