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Mounting
4.7 Connecting the motor
4.7.3
Terminal designations
For terminal designations, the following principle definitions apply to three-phase machines:
Table 4- 2
1
x
4.7.4
Direction of rotation
The motors are suitable for clockwise and counter-clockwise rotation.
Connection of the power cables in the phase sequence L1, L2, L3 to U, V, W results in
clockwise rotation, when looking at the drive-end shaft end of the motor (D- end). If two of
the connections are swapped, the resulting direction of rotation is counter-clockwise, e.g. L1,
L2, L3 to V, U, W.
In the case of geared motors intended for only one direction of rotation, e.g. with backstop,
the prescribed direction of rotation is marked by a direction arrow on the geared motor.
Clockwise
Figure 4-3
Figure 4-4
32
Terminal designations using the example 1U1-1
U
1
-
1
Designation
Index showing the pole assignment for pole-changing machines
(where applicable, a lower number = lower speed)
or, in special cases, for a subdivided winding
x
Phase designation (U, V, W)
x
Index showing winding start (1)
index showing winding end (2)
other indexes if there is more than one connection per winding
x
Additional index for cases in which it is obligatory to connect parallel power
feed cables to several terminals with otherwise identical designations
Output side A
Output side B
Counter-clockwise
Operating Instructions, 02/2015, 70000004023775
BA 2320
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