Siemens SIMOTICS XP 1MB5 SH400, Руководство по эксплуатации, Страница: 60 / 166

● Smooth running
Preconditions for smooth, vibration-free operation according to DIN 4024:
– Stable foundation design free of any shock or vibration
– Precise alignment of the driven machine
– A balanced output element corresponding to the motor balancing (coupling, belt pulley,
fan, ...)
Maintain the maximum permissible vibration amplitude levels in operation according to
ISO 10816-3.
Avoid inadmissible vibration levels caused by imbalance, for example (drive output
element), external vibration or any resonance over the complete speed range.
It may be necessary to completely balance the machine with the output element - or it may
be necessary to shift the system resonance point.
● Foot mounting/flange mounting
– When flanging the machine to a foundation or a machine flange, use the specified thread
size for the foot and flange mounting corresponding to EN 50347 or IEC 60072-1 or
IEC 60072-2.
– Mount the machine at four foot or flanged holes that are at right angles to one another.
The customer is responsible for selecting the strength (property class) of the mounting
elements.
Property class 8.8 or higher is recommended for the mounting elements.
– Select the correct screw length for IM B14 flanges.
– Ensure that the screw heads are in full contact with the flange surface. Use additional flat
washers (ISO 7093), especially for elongated foot mounting holes.
5.4.3 Aligning the machine to the driven machine and attaching it to it (IM B3 / IM B35)
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 at the operating temperature do not have any parallel or angular
offset. This ensures that no additional forces affect their bearings during operation.
If the thermal change of the motor and the driven machine is different, couple in the cold
state with an appropriate alignment offset. The alignment offset to be set in the cold state
must be determined and specified by the system specialist.
3. For the vertical positioning (x→0), place thin shims over a large surface area 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. Use the
existing tapped holes for the forcing-off bolts to raise the machine.
The balance state of the shaft (full-key or half-key balancing) and alignment errors primarily
influence the service life of the bearing, especially for high motor speeds or when using rigid
couplings.
Assembly
5.4 Aligning and fixing the machine
1MB5 SH 400/450
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Operating Instructions, 05/2019, A5E45959221A