Aligning And Fixing The Motor; Measures For Alignment And Mounting - Siemens SIMOTICS 1LE8 Operating Instructions Manual

Assembly

5.4 Aligning and fixing the motor

5.4 Aligning and fixing the motor
Observe the following when aligning and mounting:
• Ensure a flat and uniform contact surface for foot and flange mounting.
• When mounting on the wall, support the motor from below, e.g. using a bracket, or bolt
it.
• Precisely align the motor 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 offset at the coupling
and to horizontally adjust the motor:
• 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 motor 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.
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操作说明, 11/2022, A5E52373573A