Machine damage due to excessively high speeds
Excessive rotational speed can lead to serious damage to the machine. This can result in death,
serious injury or material damage.
• Avoid operation above the permissible speed by using the appropriate control function.
• Comply with the speeds stamped on the rating plate and in the electrical data.
4.11
System-inherent frequencies
Excessively high vibration levels and system resonances can damage the machine set.
• Configure and match the system consisting of the foundation and machine set in such a way
that no system resonances can arise and result in the permissible vibration levels being
exceeded.
• Do not exceed the vibration values according to DIN ISO 10816-3.
4.12
Electromagnetic compatibility
Note
If the torque levels are very unequal (e.g. when a reciprocating compressor is being driven), a
non-sinusoidal machine current will be induced whose harmonics can have an impermissible
effect on the supply system and cause impermissible interference emissions as a result.
Note
Converter
• If operated with a frequency converter, the emitted interference varies in strength,
depending on the design of the converter (type, interference suppression measures,
manufacturer).
• Avoid that the specified limit values stipulated for the drive system (consisting of the motor
and converter) are exceeded.
• You must observe the EMC information from the manufacturer of the converter.
• The most effective method of shielding is to conductively connect a shielded machine supply
cable to the metal terminal box of the machine (with a metal screw connection) over a large
surface area.
• On machines with integrated sensors (e.g. PTC thermistors), disturbance voltages caused by
the converter may occur on the sensor cable.
When used in accordance with their proper and intended purpose and operated on an electrical
supply system with characteristics according to EN 50160, the enclosed machines comply with
the requirements of the EC Directive regarding electromagnetic compatibility.
Preparing for use
4.12 Electromagnetic compatibility
1LE5, 1PC4 shaft heights 280 ... 355
44
Operating Instructions, 11/2022, A5E41454666A
