Explosion Hazard Due To Increased Surface Temperature - Siemens SIMOTICS XP 1MB1 series Operating Instructions Manual

NOTICE
Damage to insulation
If metal swarf enters the winding head when cleaning with compressed air, this can
damage the insulation. Clearance and creepage distances can be undershot. This may
cause damage to the machine extending to total failure.
When cleaning with compressed air, ensure there is adequate extraction.
NOTICE
Machine damage caused by foreign bodies
Foreign bodies such as dirt, tools or loose components, such as screws etc., can be left by
accident inside the machine after maintenance is performed. These can cause short
circuits, reduce the performance of the cooling system or increase noise in operation. They
can also damage the machine.
• When carrying out maintenance work, make sure that no foreign bodies are left in or on
• Securely attach all loose parts again once you have completed the maintenance
• Carefully remove any dirt.
Note
Operating conditions and characteristics can vary widely. For this reason, only general
intervals for inspection and maintenance measures can be specified here.
9.2.2

Explosion hazard due to increased surface temperature

Explosion hazard due to increased surface temperature
Components within the motor may be hotter than the maximum permissible surface
temperature for the enclosure. In an explosive atmosphere, dust can ignite and an
explosion occur. This can result in death, serious injury or material damage.
• Do not open the motor in an explosive and dusty atmosphere when it is still at normal
• Allow the machine to cool down before opening it.
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
Operating Instructions, 06/2018, A5E44455710A
the machine.
procedures.
WARNING
operating temperature.
Maintenance
9.2 Inspection and maintenance
113