High Frequency SineWave Guardian Installation Guide 380V-480V
Form: SHF-IG-E January 2018 Rev 002 mtecorp.com 14
Sequence of Operation
1. Read and follow safety precautions.
2. After installation, ensure that:
•
All filter ground terminals are connected to ground.
•
Power wiring to the utility, drive, filter, capacitor panels and motor is in accordance
with the power wiring connection diagrams shown in installation instructions
section.
3. Check that moisture has not condensed on the filter components. If moisture is present,
do not proceed with startup until the moisture has been removed.
4. Disconnect filter output terminals from the motor.
5. Set the drive switching frequency between 4.8 kHz and 8 kHz. Refer to the drive user
manual.
6. Connect filter temperature safety overload switch into the control circuit so that the drive
will shut down in an overload situation.
7. Confirm that drive voltage is present at the input terminals (U1, V1, W1) of the filter.
8. Confirm that drive voltage is present at the output terminals (U2, V2, W2) of the filter.
9. Connect the filter output to the motor.
10. Refer to the drive user manual for the drive startup procedure. Observe all safety
instructions in the drive user manual.
