Connecting Protruding Cables; Connection With/Without Cable Lugs - Siemens SIMOTICS SD 1LE5 Operating Instructions Manual

Damage to connecting cables that are freely led out
You must observe the following note to avoid damaging connecting cables that are freely
led out:
• It must be ensured that there are no foreign bodies, dirt, or moisture in the terminal base
• Use O-rings or suitable flat gaskets to seal entries in cover plates (DIN 42925) and other
• Seal the terminal base of the machine enclosure using the original seal of the cover plate
• Please observe the tightening torques for cable entries and other screws.
6.2.2.5

Connecting protruding cables

In the case of connection cables brought out of the machine, no terminal board is installed on
the terminal base of the machine housing. The connection cables are directly connected to
stator winding terminals at the factory.
The connection cables are color-coded or labeled. The customer directly connects individual
cables in the control cabinet for their system in accordance with the labeling.
6.2.2.6

Connection with/without cable lugs

In the case of terminals with terminal clamps, distribute the conductors in such a way that
the clamping heights on both sides of the fillet are about the same. This method of
connection requires that you must bend a single conductor in a U shape or use a cable lug.
The same applies to the inner and outer terminals of the ground conductor.
When connecting up using cable lugs, select their size corresponding to the required cable
cross-section and the stud size. An inclined arrangement is only permitted provided the
required air clearances and creepage distances are carefully maintained.
Remove insulation from the ends of the conductors so that the remaining insulation almost
reaches the cable lug.
Note
The direct contact between the cable lug surfaces and the contact nuts or contact screws
ensure that the connection can conduct current.
1LE5, 1PC4 shaft height 315/355
Operating Instructions, 10/2020, A5E41454666A
CAUTION
of the machine enclosure.
open entries.
to prevent dust and water from entering.
Electrical connection
6.2 Connecting the machine
65