Siemens SIMOTICS A 1FU8, Руководство по эксплуатации

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Electrical connection
6.2 Connecting the machine
1FU8
52
Operating Instructions, 02/2016, 5 610 70000 02 000
Connect the line supply voltage and arrange the disconnecting link in accordance with the
circuit diagram provided in the terminal box.
Select connecting cables according to DIN VDE 0100 taking into account the rated current
and the system-dependent conditions (e.g. ambient temperature, routing type etc. according
to DIN VDE 0298 or EN / IEC 60204-1).
The technical specifications stipulate the following that have to be taken into account with
respect to the motor connection:
● Direction of rotation.
● The number and arrangement of the terminal boxes.
● The circuit and connection of the machine winding.
6.2.1 Terminal designations
With the terminal designations according to DIN VDE 0530 Part 8 or EN / IEC 60034-8 for
three-phase machines, the following principle definitions apply:
Table 6- 1 Terminal designations (with the U1-1 as an example)
U 1 - 1 Designation
x Phase designation (U, V, W)
x Index showing the start (1) / end (2) or tapping point of the winding (if there is
more than one connection per winding)
x Additional index for cases in which it is obligatory to connect parallel power feed
cables to several terminals with otherwise identical designations
6.2.2 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 T
1
T
2
T
3
, then the machine rotates in the clockwise direction.
● 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 the machine rotates counter-clockwise.
According to IEC According to NEMA
Clockwise rotation U V W T
1
T
2
T
3
Counter-clockwise
rotation
V U W T
2
T
1
T
3
Direction of rotation of the motor when looking at DE