Siemens SIMOTICS XP 1MB5 SH400, Operating Instructions Manual, Page: 104 / 166

WARNING
Explosion hazard due to excessively high temperatures
If the anti-condensation heating is switched on directly after the machine is switched off, the
temperature class or the maximum surface temperature of the machine can be exceeded.
In an explosive atmosphere, there is a risk of an explosion. This can result in death, serious
injury or material damage.
● Only switch on the anti-condensation heating at the earliest two hours after the machine
has been switched off.
8.8 Non-operational periods
The stoppage is a shutdown for a period of time, during which the machine is stopped but
remains at the location of use.
Under normal ambient conditions, e.g. the stationary machine is not exposed to any vibration,
no increased level of corrosion, ... then the following measures are required.
8.8.1 Measures in non-operational periods
Longer non-operational periods
● For longer non-operational periods (> 1 month), either operate the machine or at least turn
the rotor regularly, approximately once per month.
● If attached, remove the rotor shipping brace before you turn the rotor.
● Please refer to the section "Switching on" before switching on to recommission the motor.
NOTICE
Restricted motor function
If not used for longer periods of time, material damage or complete motor failure can occur.
If the motor is out of service for a period of more than 12 months, then environmental effects
can damage the motor.
● Apply suitable corrosion protection, preservation, packing and drying measures.
Switching on the anti-condensation heating, if available
Switch on the anti-condensation heating two hours after the machine has been switched off.
Operation
8.8 Non-operational periods
1MB5 SH 400/450
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Operating Instructions, 05/2019, A5E45959221A