Vfd sales, installation and commissioning

The variable-frequency drive must be installed properly otherwise the drive could malfunction. So the installation of the VFD must be done by an experienced person. Certain precautions must be taken while installing a VFD they are the vibration level of the place must not be high where the VFD is installed and the temperature should be very low. The drive would heat up during the operation so it must be installed in a non-flammable place. It must be installed in a place where it won’t be bothered by moisture and sunlight. If the drive is installed vertically then it would be helpful to dissipate heat. If more than one VFD is installed then a cooling fan can be used. The VFD mounting must be done with the help of nuts and screws so we can ensure proper installation. The drive must be isolated from dust, water, and oil. While commissioning the VFD make sure the starter panel installation is complete and make sure that there is no damage in the starter panel. If any component is damaged then it must be repaired. Check the details of the insulation resistance values of the incoming and outgoing power wiring. Make sure that all the BMS wiring is finished. We must also check the cable dressing inside the starter panel. Make sure all the control wiring is done properly. Make sure the ratings of MCB, MCCB, and fuses are correct. All the wiring termination must be checked. We must check all the earthing connections and supporting insulators. The phase sequence and incoming voltage must be checked. The operations of the selector switch and pushbuttons must be checked. Check the speed limit and direction of rotation of the motor. Before switching the incomer on we must check the incoming voltage and phase sequence. Control supply must be checked and also check the bypass starter operation with the motor disconnected. The operation of VFD must be checked after disconnecting the motor.