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Preparing for use
5.7 Rotational speed limit values
5.6
Noise emissions
Noise emissions
During operation, the machine's noise emission levels can exceed those permitted at the
workplace, which can cause hearing damage.
• Ensure that nobody is in the area of increased noise emissions during machine operation.
• Take steps to reduce noise so that the machine can be operated safely within your system.
The following measures may help to reduce noise.
– Covers
– Noise insulation
– Hearing protection measures
Prevention of hearing damage
If the permissible sound pressure level is exceeded, hearing damage can occur when
operating three-phase motors at their rated power.
The permissible sound pressure level is 70 dB (A).
5.7
Rotational speed limit values
Danger as a result of resonance within certain speed ranges
At over-critical speeds, machines encounter resonance within certain speed ranges. Such
vibrations can reach impermissibly high levels. This can result in death, serious injury or material
damage.
• The controller must ensure that those speed ranges are blocked when the converter is in
operation. Please comply with the data on the blocked speed ranges specified in the electrical
data.
• The blocked speed ranges must be run through rapidly.
46
Frame size
132
160
x
mm
30
40
Operating Instructions, 10/2023, A5E46712792A
1FU9
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