Siemens SIMOTICS XP 1MB5 SH400, Руководство по эксплуатации, Страница: 102 / 166

Table 8-2 Mechanical effects
Mechanical fault characteristics
↓ Grinding noise
↓ Overheating
↓ Radial vibrations
↓ Axial vibrations
Possible causes of faults
Remedial measures
1)
X Rotating parts are grinding Determine cause and adjust parts concerned
X Reduced air supply, fan possibly rotating in the wrong
direction
Check airways, clean machine
X Rotor not balanced. Check feather key declaration (H, F, N)
X Rotor out of true, shaft bent Please consult the manufacturer.
X X Poor alignment Align machine set,
check coupling.
2)
X Coupled machine not balanced Re-balance coupled machine
X Surges from coupled machine Inspect coupled machine
X X Imbalance originating from gearing Adjust/repair gearing
X X Resonance in the overall system (comprising machine
and foundation)
Reinforce foundation following consultation
X X Changes in foundation Determine cause of changes; eliminate if necessa‐
ry; realign machine
1)
In addition to the cause of the fault (according to remedial measures), also eliminate any machine damage that might have
occurred.
2)
Note any changes that take place while the temperature is rising.
Operation
8.4 Electrical and mechanical faults
1MB5 SH 400/450
100
Operating Instructions, 05/2019, A5E45959221A