Connecting Ac Mains - Danfoss VLT AutomationDrive EZ FC 321 Installation Manual

VLT®AutomationDrive EZ FC 321
Installation Guide
Illustration 10: Example of Motor, Mains, and Ground Wiring

4.10 Connecting AC Mains

• Size the wiring based on the input current of the drive. For maximum wire sizes, see
• Comply with local and national electrical codes for cable sizes.
4.10.1 Connecting the Drive to Mains
Procedure
1. Connect the 3-phase AC input power wiring to terminals L1, L2, and L3.
2. Depending on the configuration of the equipment, connect the input power to the mains input terminals or the input dis-
connect.
3. Ground the cable.
4.
When supplied from an isolated mains source (IT mains or floating delta) or TT/TN-S mains with a grounded leg (grounded
delta), ensure that parameter 14-50 RFI Filter is set to [0] Off. This setting prevents damage to the DC link and reduces
ground capacity currents in accordance with IEC 61800-3.
22 | Danfoss A/S © 2021.05
Electrical Installation
4.2 Cable Specifications.
AN354546796134en-000201 / 130R0954