Connecting The Machine For A Specific Direction Of Rotation; Connection - Siemens SIMOTICS FD 1LL1 Operating Instructions Manual

Electrical connection

6.4 Connection

Ensure that the external terminal box is dimensioned according to the data on the rating plate
and is suitable for the respective use.
Faults as a result of incorrect technical design
Faults can occur if the appropriate technical data is not complied with when connecting up.
For instance, degree of protection, minimum air and creepage distances. These faults can
result in eventual or immediate death, serious injury or material damage.
Observe the data on the rating plate.
6.3.5

Connecting the machine for a specific direction of rotation

If the machine has one shaft extension or two shaft extensions with different diameters, the
direction of rotation when looking at the front of the single or the thicker shaft extension is
defined as follows:
● If you connect the power cables in the phase sequence L1, L2, L3 to U, V, W, the resulting
● If you interchange two connections, e.g. L1, L2, L3 to W, V, U, the resulting rotation will be
NOTICE
Incorrect direction of rotation
The machine will not be adequately cooled if it is operated other than how it was originally
ordered or with the incorrect direction of rotation. This can result in machine damage.
Observe the direction of rotation data on the nameplate.
6.4 Connection
The following generally applies to electrical connections:
● Ensure that there is a safe and reliable PE ground connection before starting any work.
● The connecting cables can be sealed and secured at every cable entry point into the
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WARNING
rotation will be clockwise.
counter-clockwise.
Note
On machines which are only allowed to run in one direction, the rating plate shows an arrow
which indicates the permitted direction of rotation, and it also specifies the terminal
connections in the required phase sequence.
terminal box.
SIMOTICS FD 1LL1
Operating Instructions 04/2016