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01/02 AWB8230-1415GB
Electrical connection
35
If you use a motor filter or a sinusoidal filter here, the rate of
voltage rise can be limited to values of about 500 V/
m
s
(DIN VDE 0530, IEC 2566).
By default, the DV6 frequency inverters have a clockwise rotation
field. Clockwise rotation of the motor shaft is achieved by connec-
ting the motor and frequency inverter terminals as follows:
With the DV6, the direction of rotation of the motor shaft can be
reversed by:
• swapping two of the phase connections on the motor
• actuating terminal FW (clockwise) or 8
(default: REV = anticlockwise)
• applying a control command through the interface or fieldbus
interface connection
The speed of a three-phase motor is determined by the number of
pole pairs and the frequency. The output frequency of the DV6
frequency inverter is indefinitely variable from 0.1 to 400 Hz.
Pole-changing three-phase motors (Dahlander pole-changing
motors), rotor-fed three-phase commutator shunt motors (slipring
rotor) or reluctance motors, synchronous motors and servo motors
can be connected, provided they are approved for use with
frequency inverters by the motor manufacturer.
Figure 27:
Connection types
Figure 28:
Example
in motor star circuit
Figure 29:
Example
in motor delta circuit
Warning!
If motors are used whose insulation is not suitable for
operation with frequency inverters, the motor may be
destroyed.
Motor
DV6
U1
V1
W1
U
V
W
U1
V1
W1
W2
U2
V2
U1
V1
W1
W2
U2
V2
U1
V1
W1
W2
U2
V2
/ 400 V
230
38 / 22 A
11
S1
0.67
ϕ
cos
kW
rpm
1410
50 Hz
U1
V1
W1
W2
U2
V2
/ 690 V
400
22 / 13 A
11
S1
0.67
ϕ
cos
kW
rpm
1410
50 Hz
Figure 30:
Direction of rotation, change of direction
Warning!
The operation of a motor at speeds above its rated speed
(indicated on nameplate) can cause mechanical damage
to the motor (bearings, unbalance) and the machinery to
which it is connected and can lead to dangerous opera-
ting conditions!
Caution!
Uninterrupted operation in the lower frequency range
(less than about 25 Hz) can lead to thermal damage (over-
heating) of self-ventilated motors. Possible counterme-
asures include over-dimensioning or external cooling
independent of motor speed.
Observe the manufacturers recommendations for opera-
ting the motor.
U1
V1
W1
W2
U2
V2
U1
V1
W1
W2
U2
V2
FWD
REV
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