Mounting
4.7 Connecting the motor
BA 2320
32
Operating Instructions, 02/2015, 70000004023775
4.7.3
Terminal designations
For terminal designations, the following principle definitions apply to three-phase machines:
Table 4- 2
Terminal designations using the example 1U1-1
1 U 1 -
1 Designation
x
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
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
Counter-clockwise
Figure 4-3
Output side A
Figure 4-4
Output side B
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