The Automationdrive Fc 300 Pc Software - Danfoss FC 300 Design Manual

8 Electrical Installation

8.7.6 The AutomationDrive FC 300 PC Software

Data storage in PC via MCT 10 Set-Up Software:
1. Connect a PC to the unit via USB com port
2. Open MCT 10 Set-up Software
3. Select in the "network" section the USB port
4. Choose "Copy"
5. Select the "project" section
6. Choose "Paste"
7. Choose "Save as"
All parameters are now stored.
8.8.1 High Voltage Test
Carry out a high voltage test by short-circuiting terminals U, V, W, L
2.525 kV DC for 525-690V frequency converters for one second between this short-circuit and the chassis.
NB!
When running high voltage tests of the entire installation, interrupt the mains and motor connection if the leakage currents are too
high.
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8.8.2 Earthing
The following basic issues need to be considered when installing a frequency converter, so as to obtain electromagnetic compatibility
(EMC).
• Safety earthing: Please note that the frequency converter has a high leakage current and must be earthed appropriately for safety reasons.
Apply local safety regulations.
• High-frequency earthing: Keep the earth wire connections as short as possible.
Connect the different earth systems at the lowest possible conductor impedance. The lowest possible conductor impedance is obtained by keeping the
conductor 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 avoids having different
HF voltages for the individual devices and avoids the risk of radio interference currents running in connection cables that may be used between the
devices. The radio interference will have been reduced.
In order to obtain a low HF impedance, use the fastening bolts of the devices as HF connection to the rear plate. It is necessary to remove insulating
paint or similar from the fastening points.
8.8.3 Safety Earth Connection
The frequency converter has a high leakage current and must be earthed appropriately for safety reasons acording to EN 50178.
The earth leakage current from the frequency converter exceeds 3.5 mA. To ensure a good mechanical connection from the earth
cable to the earth connection (terminal 95), the cable cross-section must be at least 10 mm2 or 2 rated earth wires terminated sepa-
rately.
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Data transfer from PC to drive via MCT 10 Set-Up Software:
1. Connect a PC to the unit via USB com port
2. Open MCT 10 Set-up software
3. Choose "Open"– stored files will be shown
4. Open the appropriate file
5. Choose "Write to drive"
All parameters are now transferred to the drive.
A separate manual for MCT 10 Set-up Software is available.
, L and L . Energize maximum 2.15 kV DC for 380-500V frequency converters and
1 2 3
MG.33.BC.02 - VLT ® is a registered Danfoss trademark
FC 300 Design Guide