Siemens SIMOTICS SD - Machine Alignment and Mounting

5.4 Aligning and 󹪝xing the machine
Observe the following when aligning and mounting:
• Ensure a 󹪞at and uniform contact surface for foot and 󹪞ange mounting.
• When mounting on the wall, support the machine from below, e.g. using a bracket, or bolt
it.
• Precisely align the machine when couplings are used.
• Ensure that the mounting surfaces are clean and free of any dirt.
• Remove any anti-corrosion protection using white spirit.
• Avoid installation-related resonances with the rotating frequency and twice the line
frequency.
• Note any unusual noise when the rotor is manually turned.
• Check the direction of rotation with the motor uncoupled.
• Avoid rigid couplings.
• Repair any damage to the paint, this must be done immediately and correctly.
5.4.1 Measures for alignment and mounting
The following measures are required in order to compensate any radial o󹪜set at the coupling and
to horizontally adjust the electrical machine with respect to the driven load:
• Vertical positioning
For vertical mounting positions, avoid deforming the machines by placing shims under the
mounting feet. Keep the number of shims low; only use a few stacked shims.
• Horizontal positioning
To position the machine horizontally, shift it sideways on the foundation and ensure that the
axial position is maintained (angularity error).
• When positioning the motor, ensure that a uniform axial gap is maintained around the
coupling.
Assembly
5.4Aligning and 󹪝xing the machine
1LE5, 1PC4 shaft heights 280 ... 355
Operating Instructions, 11/2022, A5E41454666A 57