Variable Frequency Drive Settings
Make sure that the variable frequency drive will be set for operation modes and ranges that are
compatible with the MFC Kit:
• Maximum output frequency: 80 Hz
• Constant PWM switching (carrier) frequency between 2 kHz and 16 kHz, ideally 4
kHz to 8 kHz
• Mode of operation: speed control "scalar" or "V/Hz" without DC braking unless the drive
application has been confirmed by TCI Technical Support
• Consult VFD manual for other drive specific recommendations for use with sine wave
filters, specific instructions may include but are not limited to: disabling any variable PWM
switching frequency options such as features to reduce motor noise or control
temperature and setting drive to continuous 3-phase modulation.