CAUTION
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
of the machine enclosure.
• Use O-rings or suitable flat gaskets to seal entries in cover plates (DIN 42925) and other
open entries.
• Seal the terminal base of the machine enclosure using the original seal of the cover plate to
prevent dust and water from entering.
• 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.
Electrical connection
6.2 Connecting the machine
1LE5, 1PC4 shaft heights 280 ... 355
Operating Instructions, 11/2022, A5E41454666A
69
