Screened Cables; Motor Cable - Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual

How to Install

4.1.6 Screened Cables

WARNING
Danfoss recommends using screened cables between the
LCL filter and the frequency converter. Unshielded cables
can be used between transformer and LCL filter input
side.
4 4
It is important that screened and armoured cables are
connected in a proper way to ensure high EMC immunity
and low emissions.
The connection can be made using either cable glands
or clamps.
•
EMC cable glands: Available cable glands can be
used to ensure an optimum EMC connection.
•
EMC cable clamp: Clamps allowing easy
connection are supplied with the frequency
converter.

4.1.7 Motor Cable

Connect the motor to terminals U/T1/96, V/T2/97, W/T3/98.
Ground to terminal 99. All types of 3-phase asynchronous
standard motors can be used with a frequency converter.
The factory setting is for clockwise rotation with the
frequency converter output connected as follows:
Terminal Number
96, 97, 98
99
Table 4.3 Motor Connection Terminals
•
Terminal U/T1/96 connected to U-phase.
•
Terminal V/T2/97 connected to V-phase.
•
Terminal W/T3/98 connected to W-phase.
36
Operating Instructions
Function
Mains U/T1, V/T2, W/T3
Ground
Danfoss A/S © Rev. 06/2014 All rights reserved.
Motor
U V W
2 2 2
U V
W
1 1 1
FC
96 97 98
Motor
U V W
2 2 2
U V W
1 1 1
FC
96 97 98
Illustration 4.13 Wiring for Clockwise and Counterclockwise
Motor Rotation
The direction of rotation can be changed by switching 2
phases in the motor cable or by changing the setting of
4-10 Motor Speed Direction.
A motor rotation check can be performed using 1-28 Motor
Rotation Check and following the steps shown on the
display.
Requirements
F8/F9 requirements: The cables must be of equal length
within 10% between the inverter module terminals and the
first common point of a phase. The recommended
common point is the motor terminals.
F10/F11 requirements: Motor phase cable quantities must
be multiples of 2, resulting in 2, 4, 6, or 8 (1 cable is not
allowed) to obtain equal amount of wires attached to both
inverter module terminals. The cables must be equal
length within 10% between the inverter module terminals
and the first common point of a phase. The recommended
common point is the motor terminals.
F12/F13 requirements: Motor phase cable quantities must
be multiples of 3, resulting in 3, 6, 9, or 12 (1, 2, or 3
cables are not allowed) to obtain an equal amount of wires
attached to each inverter module terminal. The wires must
be of equal length within 10% between the inverter
MG20Y202