Siemens SIMOTICS FD 1LH1, Инструкция по эксплуатации и установке

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6.4.4 Connection without terminal box
If the machine was ordered without terminal box (where the cables are simply brought out of the
motor), then the proper connection must be made in an external terminal box.
WARNING
Incorrect dimensioning
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.
● Ensure that the external terminal box is dimensioned according to the data on the rating
plate and is suitable for the respective use.
6.4.5 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 line cables with phase sequence L1, L2, L3 to U, V, W or according to
NEMA at T
1
T
2
T
3
, then a clockwise phase sequence is obtained.
● If you interchange two connections, e.g. L1, L2, L3 at V, U, W or according to NEMA at
T
2
T
1
T
3
, then a counterclockwise phase sequence is obtained.
● 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.
Check the appropriate data before connecting the line feeder cables.
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.
Electrical connection
6.4 Preparation
SIMOTICS FD 1LH1
Operating Instructions 01/2019
85