Terminal Designation; Circuit Diagram Inside The Terminal Box Cover; Direction Of Rotation - Siemens SIMOTICS XP Operating Instructions Manual

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
• Please observe the tightening torques for cable entries and other screws.
• Do not apply manual force to the terminal board. The terminal board mountings are
See also
Tightening torques for screw and bolt connections (Page 145)
6.1.2.1

Terminal designation

According to IEC / EN 60034-8, the following basic definitions apply to the terminal markings
for 3-phase machines:
Table 6- 1
1
x
6.1.2.2

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.
6.1.2.3

Direction of rotation

The standard motors are suitable for clockwise and counter-clockwise rotation.
1MB..5/6 shaft height 71 ... 355
Operating Instructions, 10/2021, A5E41926185A
other open entries.
designed for the cable sizes specified in the documentation.
Terminal markings using the 1U1-1 as an example
U 1 - 1 Marking
Code for split winding, where applicable. Special case for pole assignment for
pole-changing machines.
A lower index signifies a lower speed.
x Phase designation U, V, W
x Index for winding start (1) or end (2) or if there is more than one connection per
winding
x Additional indices for cases in which it is obligatory to connect parallel power
feed cables to several terminals with otherwise identical markings
Electrical connection
6.1 Connecting the machine
69