Siemens SIMOTICS XP 1LA5 Compact Operating Instructions page 20

Preparing for use
4.5 Explosion hazard during commissioning, if
stored incorrectly
WARNING
Risk of explosion due to damaged sealing materials
Storing the machine at temperatures that do not fall within the specified limits can
damage the material of the seals and cause them to fail. As a result, a potentially
explosive gaseous atmosphere can enter the machine and be ignited during
commissioning. Explosions can occur. This can result in death, serious injury or
material damage.
The materials used are specially designed for the temperature range required by
the customer. Do not store the motor in conditions that lie outside the specified
temperature limits. The relevant temperature limits are specified on the rating plate.
Storage temperature
Permissible temperature range: -20 °C to +50 °C
The relative humidity of the air should be less than 60 %.
For machines that have a special design regarding the coolant temperature in the
operating state or the installation altitude, other conditions could apply regarding the
storage temperature. In this case, refer to the machine rating plate for data on the
coolant temperature and installation altitude.
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 status of the grease when stored for longer
than 12 months.
● Replace the grease if it is identified that the grease has lost its lubricating
properties or is polluted. The consistency of the grease will change if
condensation is allowed to enter.
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Explosion-protected machines
56100000002002, 01/2016