Siemens LV Motors Manual - Rotor UK
Siemens LV Motors Manual - Rotor UK
Siemens LV Motors Manual - Rotor UK
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Mounting, installation<br />
5.3 Connecting<br />
5.3.1.3 Direction of rotation<br />
The standard motors are suitable for clockwise and counter-clockwise rotation.<br />
Connection of the power cables in the phase sequence L1, L2, L3 to U, V, W results in<br />
clockwise rotation (looking at the DE shaft end on the drive side). If two of the connections<br />
are swapped, then the resulting direction of rotation is counter-clockwise (e.g. L1, L2, L3 to<br />
V, U, W).<br />
In the case of machines intended for only one direction of rotation, the prescribed direction of<br />
rotation is marked by a direction arrow on the machine.<br />
5.3.1.4 Connection with/without cable lugs<br />
In the case of terminals with terminal clips, the conductors are to be spread out in such a<br />
way that the terminating heights on both sides of the web are about the same. This method<br />
of connection requires that a single conductor must be bent into a U shape or is to be<br />
connected with a cable lug. The same applies to the inner and outer terminals of the ground<br />
conductor<br />
When using cable lugs to make the connection, the choice of cable lug size must match the<br />
required conductor cross-section and the bolt size. A skewed arrangement is only<br />
permissible if the required air gaps and creepage distances are adhered to.<br />
Strip the insulation from conductor ends in such a way that the remaining insulation almost<br />
reaches the cable lug.<br />
Note<br />
The direct contact between the cable lug surfaces and the contact nuts ensure that the<br />
connection can carry current.<br />
5.3.1.5 Connecting protruding cables<br />
In the case of connection cables protruding out of the machine, no terminal board is installed<br />
on the terminal base of the machine housing. The connection cables are directly connected<br />
to stator winding terminals at the factory.<br />
The connection cables are color coded or labeled and are provided with end sleeves by the<br />
customer. The customer directly connects individual cables in the control cabinet for their<br />
system in accordance with the labeling.<br />
1LA5/6/7/9, 1LP7/9, 1PP6/7/9, 1MA6/7, 1MF6/7, 1MJ6, 1LE1<br />
36 Operating Instructions, 10/2008, 5 610 00000 02 000
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