01/02 AWB8230-1413GB
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 DF6 frequency inverters have a clockwise rotation
field. Clockwise rotation of the motor shaft is achieved by
connecting the motor and frequency inverter terminals as follows:
In frequency inverter operation, you can reverse the direction of
rotation of the motor shaft by:
• swapping two of the motor’s phase connections.
• actuating terminal FW (clockwise) or 5
(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 DF6 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
DF6
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 the nameplate) can cause mechanical
damage to the motor (bearings, unbalance) and the
machinery to which it is connected, and can lead to
dangerous operating conditions.
Caution!
Uninterrupted operation in the lower frequency range
(less than about 25 Hz) can lead to thermal damage
(overheating) of self-ventilated motors. Possible
countermeasures include over-dimensioning or external
cooling independent of motor speed.
Observe the manufacturers recommendations for
operating the motor.
U1
V1
W1
W2
U2
V2
U1
V1
W1
W2
U2
V2
FWD
REV
efesotomasyon.com - Klockner Moeller - inverter
