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Humidity conditions for MS2N motors, cables and drives

Humidity conditions for MS2N motors, cables and drives

Tasty_Tech
Long-established Member

Hello,

I see that the relative humidity percentage of storage/transport for motor and cables mentioned in the documentation as 5..75% whereas during the operation condition it is 5..95%, is there some technical implications if the storage or non-operating condition humidity are not met? which is the component will have technical implication in the motor/cable of this?

Thank you

2 REPLIES 2

macmotor
Long-established Member

Humidity is an issue one should always have an eye on, for all types of equipment, brands and manufacturers.

  • In general, cables with elastic insulation and jackets made from plastic compounds can e.g. suffer from hydrolisis, if unfavourable humidity and temperature work together for a longer time, thus weakening the material structure over time and downgrading electrical characteristics.
  • For our latest power, encoder and hybrid cable generations we use PP (polypropylene) for the internal wire insulation, PUR for the cable jacket, providing state-of-the-art material robustness and lifetime. However, cables suffer from electrical, mechanical, thermal, chemical and other stress factors (e.g. ultraviolet radiation in daylight), and thus must be considered in general as "wear parts", which might need a replacement when the time has come.
  • For motors humidity is usually not a big issue too, but unfavourable conditions and operation can also do their work. One common effect could be of course corrosion on all kinds of blank metal surfaces, but also collecting condensation liquid inside could become an issue over time. If humidity and e.g. chemical and/or mechanical contamination work together, things could become uncomfortable for any product.

However, if our products are transported, stored and used appropriately, they can provide superior availability and lifetime. If you need some background information on the classification of ambient conditions given in our product manuals, then please have a look in standard EN/IEC 60721.

Tasty_Tech
Long-established Member

Perfeect, Thank you very much for such a descriptive answer. Appreciated.

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