Toshiba VF-A7 Welding System User Manual


 
F-19
6.10 Jump frequency - Jumping resonant frequencies
 Jump frequency #1
 Jump frequency band #1
 Jump frequency #2
 Jump frequency band #2
 Jump frequency #3
 Jump frequency band #3
[Parameter setting]
Title Function Adjustment range Default setting

Jump frequency #1
 


Jump frequency band #1
 


Jump frequency #2
 


Jump frequency band #2
 


Jump frequency #3
 


Jump frequency band #3
 

If the upper limit frequency () is within a jump frequency range,
it is limited to the lowest frequency in the jump frequency range.
If the lower limit frequency () is within a jump frequency range,
it is limited to the highest frequency in the jump frequency range.
Do not overlap upper limit freqency () and lower limit
frequency () within a jump frequency range. If they are
overlapped,it is operated lowest jump frequency.
Do not overlap two or more jump frequency ranges,or it cannot
be operated within normal range.
The operation frequency is not jumped during acceleration
or deceleration.
6.11 Preset-speed #8 15
  Preset-speed #8 #15
Refer to 5.14 for details.
Function
These parameters are used to jump resonant frequencies to avoid resonance with the
natural frequency of the mechanical equipment operated. In jump mode, the motor
exhibits hysteresis with respect to the jump frequency.
Jump frequency band #3

Jump frequency band #2

Jump frequency band #1
()
Jump frequency #1()
Jump frequency #3()
Jump frequency #2()
Output frequency [Hz]
Setting frequency


Jump frequency
band #2
Jump frequency
band #1