Siemens SIMOTICS M-1PH1, Equipment Manual, Page: 59 / 134

Mounting the motor
5.3 Mounting the motor
1PH1 main motors
Equipment Manual, 09/2021, A5E51077676A-AA
57
5.3 Mounting the motor
In order to ensure smooth, vibration-free motor operation, a stable foundation design is
required, the motor must be precisely aligned, and the components that are to be mounted
on the shaft extension must be correctly balanced.
The following mounting instructions must be carefully observed:
•
For high-speed machines, the complete unit should be dynamically balanced after
couplings or belt pulleys have been mounted.
• Use suitable equipment when mounting drive elements. Use the thread at the shaft
extension.
• Do not apply any shocks or axial pressure to the shaft extension.
• Especially for high-speed motors with flange mounting, it is important that the mounting
is stiff in order to locate any natural frequency as high as possible so that it remains above
the maximum rotational frequency.
• Thin sheets (shims) can be placed under the motor mounting feet to align the motor and
to avoid mechanically stressing the motor. The number of shims used should be kept to a
minimum.
• In order to securely mount the motors and reliably and safely transfer the drive torque,
bolts with strength class 8.8 according to ISO 898-1 should be used.
Note
All flange-mounted motors must have a stable motor suspension assembly and for high field
weakening speeds must be supported using the appropriate feet at the bearing end shield.
For more information on foot/flange mounting, see Section "Mounting orientation and
outline dimensions (Page 56)".
Support using feet at the bearing end shield is not required if the following conditions are
maintained:
•
For flange-mounted motors, there is a stable motor suspension design.
• The permissible vibration values according to DIN ISO 10816 are maintained.
• The maximum speed is limited (see Section "SIMOTICS M-1PH1 main motors (Page 109)").
Motors that are mounted, as a result of their type of construction, to the wall using the motor
feet, must be fixed in place through the use of an adequately dimensioned positive form fit
(for example, studs or mounting rails).
When commissioning the motors, it must be ensured that the permissible vibration values
according to DIN ISO 10816 are maintained.
Note
Using the eyebolts
Lift the 1PH1 motor only at the eyebolts.
Note
Mount the motor so that the cooling air can enter and be discharged without any restrictions.