Electrical connection
6.2 Connecting the machine
1LE5, 1PC4 shaft height 315/355
Operating Instructions, 10/2020, A5E41454666A
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6.2.2
Terminal box
DANGER
Hazardous voltage
Electric motors have high voltages. When incorrectly handled, this can result in death or
severe injury.
Switch off the machine so that it is in a no-voltage condition before you open the terminal
box.
NOTICE
Damage to the terminal box
If you incorrectly carry out work on or in the terminal box, this can result in material
damage. You must observe the following to avoid damaging the terminal box:
•
Ensure that the components inside the terminal box are not damaged.
•
It must be ensured that there are no foreign bodies, dirt or moisture in the terminal box.
•
Close the terminal box using the original seal so that it is dust tight and water tight.
•
Use O-rings or suitable flat gaskets to seal entries in the terminal box (DIN 42925) and
other open entries.
•
Please observe the tightening torques for cable entries and other screws.
6.2.2.1
Circuit diagram inside the terminal box cover
Data on the connection and connecting the machine winding can be found in the circuit
diagram in the cover of the terminal box.
6.2.2.2
Direction of rotation
The standard motors are suitable for clockwise and counter-clockwise rotation.
For defined directions of rotation (direction of rotation arrow), appropriately connect the line
power cables.
•
If you connect the line cables with phase sequence L1, L2, L3 at U, V, W or according to
NEMA at T1 T2 T3 , then the machine rotates in the clockwise direction.
