Danfoss VLT AQUA Drive FC 202 Design Manual page 138

How to Install
motor contactor, the screen must be continued at the
lowest possible HF impedance.
Connect the motor cable screen to both the de-coupling
plate of the frequency converter and to the metal housing
of the motor.
Make the screen connections with the largest possible
surface area (cable clamp). This is done by using the
supplied installation devices within the frequency
converter.
Cable-length and cross-section
The frequency converter has been EMC tested with a given
5 5
length of cable. Keep the motor cable as short as possible
to reduce the noise level and leakage currents.
Switching frequency
When frequency converters are used together with sine-
wave filters to reduce the acoustic noise from a motor, the
switching frequency must be set according to the
instruction in 14-01 Switching Frequency.
Term. 96
no.
U
U1
W2
U1
Table 5.18 Terminals
1)
Protected Earth Connection
NOTE
In motors without phase insulation paper or other
insulation reinforcement suitable for operation with
voltage supply (such as a frequency converter), fit a Sine-
wave filter on the output of the frequency converter.
136
97 98 99
V W 1) Motor voltage 0-100% of
PE
mains voltage.
3 wires out of motor
V1 W1 Delta-connected
1)
PE
U2 V2 6 wires out of motor
V1 W1 1) Star-connected U2, V2, W2
PE
U2, V2, and W2 to be intercon-
nected separately.
MG20Z102 - VLT
®
VLT AQUA Drive FC 202 Design Guide
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is a registered Danfoss trademark