
Risk of explosion due to excessive bearing temperature
The surface temperature cannot be maintained within maximum permissible limits if the
bearing becomes too hot. The dust can ignite, resulting in an explosion. This can result in death,
serious injury or material damage.
● Always check the bearing temperature.
● In addition to the current-dependent overload protection device located in the three phases
of the connecting cable, we recommend that you also monitor the temperature rise in the
machine using temperature sensors integrated in the stator winding.
DANGER
Explosion hazard if the bridging is removed from the insulated bearing
Removing the factory-fitted bridging of the insulated bearing leads to potential differences
between the rotor and the grounded motor. This can cause the generation of sparks, which
especially in an explosive atmosphere can ignite surrounding dust or combustible gases.
Explosions can occur. There is also a risk of an electric shock. Death, serious injury, or
material damage will result.
Do not open the bridging of the bearing insulation during operation.
Excessively high machine temperature when heating is switched on
If the anti-condensation heating is operated while the machine is running, this can increase the
temperatures inside the machine. Material damage can result.
● Make sure that the anti-condensation heating is switched off before the machine is switched
on.
● Only operate anti-condensation heating when the machine is switched off.
8.2
Regreasing rolling bearings
Refer to the regreasing instructions for the rolling bearings on the lubricant plate.
8.3
Switching on again after an emergency switching-off
● Check the machine before recommissioning the driven machine after an Emergency Off.
● Eliminate all the causes that have led to the emergency off
Operation
8.3 Switching on again after an emergency switching-off
1MB5 SH 400/450
98
Operating Instructions, 05/2019, A5E45959221A
Содержание SIMOTICS XP 1MB5 SH400
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Страница 10: ...Table of contents 1MB5 SH 400 450 8 Operating Instructions 05 2019 A5E45959221A ...
Страница 64: ...Assembly 5 4 Aligning and fixing the machine 1MB5 SH 400 450 62 Operating Instructions 05 2019 A5E45959221A ...
Страница 106: ...Operation 8 8 Non operational periods 1MB5 SH 400 450 104 Operating Instructions 05 2019 A5E45959221A ...
Страница 154: ...Disposal 11 5 Disposal of components 1MB5 SH 400 450 152 Operating Instructions 05 2019 A5E45959221A ...
Страница 156: ...Service support 1MB5 SH 400 450 154 Operating Instructions 05 2019 A5E45959221A ...
Страница 160: ...Quality documents 1MB5 SH 400 450 158 Operating Instructions 05 2019 A5E45959221A ...
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Страница 166: ...Germany More information www siemens com drives Siemens AG Digital Industries Postfach 48 48 90026 NÜRNBERG ...