Danfoss FC 300 Design Manual

Also see for FC 300: Operating instructions Instruction manual Design guide Design guide Design guide

Contents

Danfoss FC 300 Design Manual Manual pdf 202 page image

8.7.6 The AutomationDrive FC 300 PC softwareData storage in PC via MCT 10 Set-up Software:1. Connect a PC to the unit via the USB com port.2. Open MCT 10 Set-up Software3. Select the USB port in the “network” section.4. Choose “Copy”.5. Select the “project” section.6. Choose “Paste”.7. Choose “Save as”All parameters are now stored.Data transfer from PC to drive via MCT 10 Set-up Software:1. Connect a PC to the unit via the USB com port.2. Open MCT 10 Set-up software3. Choose “Open”– stored files will be shown.4. Open the appropriate file5. Choose “Write to drive”All parameters are now transferred to the drive.A separate manual for MCT 10 Set-up Software is available.8.8.1 High Voltage TestCarry out a high voltage test by short-circuiting terminals U, V, W, L 1, L2 and L3 . Energize maximum 2.15 kV DC for 380–500 V adjustable frequencydrives and 2.525 kV DC for 525–690 V adjustable frequency drives for one second between this short-circuit and the chassis.NOTE!When running high voltage tests of the entire installation, interrupt line power and the motor connection if the leakage currents aretoo high.8.8.2 GroundingThe following basic issues need to be considered when installing an adjustable frequency drive, so as to obtain electromagnetic com-patibility (EMC).• Safety grounding: Please note that the adjustable frequency drive has a high leakage current and must be grounded appropriately for safetyreasons. Always follow local safety regulations.• High-frequency grounding: Keep the ground wire connections as short as possible.Connect the different ground systems at the lowest possible conductor impedance. The lowest possible conductor impedance is obtained by keeping theconductor as short as possible and by using the greatest possible surface area.The metal cabinets of the different devices are mounted on the cabinet rear plate using the lowest possible HF impedance. This prevents having differentHF voltages for the individual devices and prevents the risk of radio interference currents running in connection cables that may be used between thedevices, as radio interference is reduced.In order to obtain a low HF impedance, use the fastening bolts of the devices as HF connections to the rear plate. It is necessary to remove insulatingpaint and the like from the fastening points.8.8.3 Safety Ground ConnectionThe adjustable frequency drive has a high leakage current and must be grounded appropriately for safety reasons according to EN 50178.The ground leakage current from the adjustable frequency drive exceeds 3.5 mA. To ensure a good mechanical connection from theground cable to the ground connection (terminal 95), the cable cross-section must be at least 0.39 in2 [10 mm2] or 2 rated groundwires terminated separately.8 Electrical Installation FC 300 Design Guide8-44 MG.33.BC.22 - VLT® is a registered Danfoss trademark8