Machine Frame Mounting Feet (Special Design); Installing The Machine; Preconditions For Smooth, Vibration-Free Operation; Aligning The Machine To The Driven Machine And Mounting - Siemens SIMOTICS XP 1MB1 series Operating Instructions Manual

5.3.4

Machine frame mounting feet (special design)

Please note that when the terminal box is mounted at the NDE (option H08), dimension C
can deviate from EN 50347.
To comply with dimension C according to EN 50347, for machines with double or triple holes
at the NDE, use the appropriate screw bore.
5.4

Installing the machine

5.4.1

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 fitted to the shaft end.
● Vibration values in compliance with ISO 10816-3
5.4.2

Aligning the machine to the driven machine and mounting

5.4.2.1

Selecting bolts

● Unless specified otherwise, use fixing 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.
5.4.2.2

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 offset. This ensures that no additional forces
affect 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-off bolts to somewhat raise the machine.
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
Operating Instructions, 06/2018, A5E44455710A
Assembly
5.4 Installing the machine
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