Required Tools; Emc-Compliant Installation - Danfoss VLT A1 Guia De Instalacion

VLT® Frequency Converters, 0.25–90 kW
Installation Guide

1.5 Required Tools

• Lifting aid
• Tape measure
• Drill with assorted bits
• Screwdrivers (Torx, Phillips, slotted)
• Wrench with 7–17 mm sockets
• Socket extensions
• Sheet metal punch and/or pliers
• Wire crimper
1.6 Verifying the Shipment and the Contents
Make sure that the items supplied and the information on the nameplate located on the exterior of the enclosure match the order.
The type code is used in the fuse table. Write down the type code and serial number for future reference.
1
2
3
4
5
Illustration 1: Example of the Nameplate
1 Type code
2 Part number and serial number
3 Power rating

1.7 EMC-compliant Installation

For more information, refer to the product-specific operating guide and design guide.
• Use shielded cables for motor (unshielded cables in metal conduit are acceptable), brake, DC, and control wiring.
• Ensure that motor, brake, and DC cables are as short as possible to reduce the interference level from the entire system. Provide
a minimum space of 200 mm (7.9 in) between mains input, motor cables, and control cables.
• Convey the currents back to the drive using a metal mounting plate. Ensure good electrical contact from the mounting plate
through the mounting screws to the metal frame of the enclosure.
• If the shield connection points have a voltage potential difference, connect a low impedance equalizing wire parallel to the
shielded cable.
• When using relays, control cables, a signal interface, fieldbus, or brake, connect the shield to the enclosure at both ends. If the
ground path has high impedance, is noisy, or is carrying current, break the shield connection on one end to avoid ground cur-
rent loops.
6 | Danfoss A/S © 2022.09
N O T I C E
6
Input/output voltage, frequency, and current
4
Protection rating
5
Frame
6
Instructions
AN41701953385301-000101 / 130R1261