Siemens SIMOTICS T-1FW68, Configuration Manual

Page: 39 / 194

Description of the motor
2.3 Technical features and ambient conditions
1FW68 radial segment motors
Configuration Manual, 08/2021, A5E51132930B AA
37
2.3.4 Defining the direction of rotation
Direction of rotation
If the stator segments of the segment motor are connected with a U-V-W phase
sequence and a three-phase system with clockwise rotating field is connected, then the
segment motor rotor rotates clockwise. You can identify the direction of rotation by
looking at the A end of the segment motor. The opposite B end is the cable outlet side of
the segment motor.
Figure 2-5 Viewing direction when determining the direction of rotation
2.3.5 Ambient conditions for stationary use
You can classify the ambient conditions for stationary use at weatherprotected locations
according to the standard IEC 60721-3-3. The environmental effects and their limit
values are defined in various classes in this standard.
With the exception of "Low air temperature" and "Low air pressure" ambient parameters,
you can assign the motors to climatic class 3K3.