Electromagnetic Compatibility - Siemens SIMOTICS SD Operating Instructions Manual

locate machines, equipment and crates on pallets, wooden beams or foundations. Prevent
equipment from sinking into the ground. Do not impede air circulation under the stored items.
Covers or tarpaulins used to protect the equipment against the weather must not come into
contact with the surfaces of the equipment. Use wooden spacer elements to ensure that air
can circulate freely around the equipment.
Storing indoors
The storage rooms must provide protection against extreme weather conditions. They must
be dry, free from dust, frost and vibration and well ventilated.
Bare metal surfaces
For transport, the bare surfaces (shaft ends, flange surfaces, centering edges) should be
coated with an anti-corrosion agent which will last for a limited amount of time (<6 months).
Apply suitable anti-corrosion measures for longer storage times.
Condensation drain hole
Open any condensation drain holes to drain the condensation depending on the
environmental conditions, every six months at the latest.
Storage time
Turn the shafts 1x every year to avoid bearing brinelling. Prolonged storage periods reduce
the useful life of the bearing grease (aging).
Open bearings
● For open bearings e.g. 1Z, check the state of the bearing grease over 12 months.
● Replace the grease if it is identified that the grease has lost its lubricating properties or is
Closed bearings
● For sealed bearings, replace the DE and NDE bearings after a storage time of 48 months.
4.4

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.
Low-voltage motors
Operating Instructions, 05/2014, 5 610 00000 02 000
polluted. The consistency of the grease will change if condensation is allowed to enter.
Preparing for use
4.4 Electromagnetic compatibility
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