Speed Bypass From; Speed Bypass To - Danfoss VLT FC 51 Series Programming Manual

4. Parameter Descriptions
4.5.4. 4-6* Speed Bypass
In some applications mechanical resonance may occur. Avoid resonance points by creating a by-
pass. The frequency converter ramps through the bypass area thereby passing mechanical
resonance points quickly.
4-61 Speed Bypass From [Hz]
Range:
4
0.0 Hz
4-63 Speed Bypass To [Hz]
Range:
0.0 Hz
38
Function:
Array [2]
* [0.0 - 400.0 Hz] Enter either the lower or upper limit of the speeds to be avoided.
It does not matter whether Bypass From or Bypass Too is the
upper or lower limit, however the Speed Bypass function is dis-
abled if the two parameters are set to the same value.
Function:
Array [2]
* [0.0 - 400.0 Hz] Enter either the upper or lower limit of the speed area to be
avoided.
Make sure to enter the opposite limit of that in par. 4-61
Bypass From [Hz]
MG.02.C2.02 - VLT
.
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VLT Micro Drive FC 51
Speed