®
VLT
HVAC Drive Operating Instructions
All types of three-phase asynchronous standard motors can be connected
to the frequency converter. Normally, small motors are star-connected
(230/400 V, D/Y). Large motors are delta-connected (400/690 V, D/Y).
Refer to the motor name plate for correct connection mode and voltage.
NB!
In motors without phase insulation paper or other insulation reinforcement suitable for operation with voltage supply (such as a fre-
quency converter), fit a sine-wave filter on the output of the frequency converter. (Motors that comply with IEC 60034-17 do not require
an Sine-wave filter).
No.
96
U
U1
W2
U1
No.
99
PE
Table 4.14: 3 and 6 cable motor connection.
97
98
Motor voltage 0-100% of mains voltage.
V
W
3 cables out of motor
V1
W1
6 cables out of motor, Delta-connected
U2
V2
V1
W1
6 cables out of motor, Star-connected
U2, V2, W2 to be interconnected separately
(optional terminal block)
Earth connection
MG.11.A6.02 - VLT
®
is a registered Danfoss trademark
Illustration 4.15: Terminals for motor connection
4. Electrical installation
31
4
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