Siemens SIMOTICS SD - Installing the Machine; Preconditions for Smooth, Vibration-Free Operation; Aligning the Machine to the Driven Machine and Mounting; Selecting Bolts

5.5 Installing the machine
5.5.1 Preconditions for smooth, vibration-free operation
Preconditions for smooth, vibration-free operation:
• Stable foundation design
• Precise alignment of the machine
• Correct balancing of parts to be 󹪝tted to the shaft end.
• Vibration values in compliance with ISO10816‑3
5.5.2 Aligning the machine to the driven machine and mounting
5.5.2.1 Selecting bolts
• Unless speci󹪝ed otherwise, use 󹪝xing screws with at least strength class 8.8 to ISO 898-1 to
ensure that the machine is securely mounted and to transmit the torque-generated forces.
• When selecting the bolts and the design of the foundation, take into account the maximum
forces occurring in the case of a fault such as short circuit or system transfers in phase
opposition, etc.
Request the foundation force values from the Service Center if required.
See also
Tightening torques for screw and bolt connections (Page133)
5.5.2.2 Horizontal types of construction with mounting feet
1. Refer to any instructions for aligning the driven machine and those of the coupling
manufacturer.
2. Align the machines with coupling output to the driven machine in such a manner that the
center lines of the shafts are parallel with no o󹪜set. This ensures that no additional forces
a󹪜ect their bearings during operation.
3. For the vertical positioning (x→0) place thin shims under the machine feet. The number of
shims should be kept as low as possible, i.e. stack as few as possible. This also prevents the
machine being subjected to any stress/distortion. If available, use the existing tapped holes
for the forcing-o󹪜 bolts to somewhat raise the machine.
Assembly
5.5Installing the machine
1LE5, 1PC4 shaft heights 280 ... 355
Operating Instructions, 11/2022, A5E41454666A 59