WARNING
Explosion hazard due to overheating of the machine caused by deposits of dust
Deposits of dust have a thermal insulation effect, which can lead to the machine overheating.
The maximum surface temperature of the machine cannot be adhered to. The dust can ignite,
resulting in an explosion. This can result in death, serious injury or material damage.
● Dust the machine regularly.
● Do not switch the machine on until the dust has been removed.
WARNING
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 temperatures.
● 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 with the aid of the temperature sensors built into the stator winding.
For the alarm and shutdown temperatures, see the "Explanatory text for the machine
dimension drawing" section.
9.1.2
Risk of explosion when cleaning with compressed air
WARNING
Risk of explosion when cleaning with compressed air
If you clean the machine with compressed air, plastic components may become statically
charged and ignite a potentially explosive atmosphere; an explosion can occur. This can
result in death, serious injury or material damage.
Do not use compressed air to clean plastic parts in an explosive atmosphere. When cleaning
the machine, make sure that the air in the vicinity of the motor is free of gas and dust.
9.1.3
Measurement of the insulation resistance and polarization index in the context of
maintenance work
Measuring the insulation resistance and polarization index (PI) provides information on the
condition of the machine. It is therefore important to check the insulation resistance and the
polarization index at the following times:
Maintenance
9.1 Inspection and maintenance
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2014
103
Summary of Contents for 1LA8
Page 2: ...23 05 2014 10 18 V8 00 ...
Page 12: ...Table of contents SIMOTICS TN Series N compact 1LA8 12 Operating Instructions 05 2014 ...
Page 100: ...Operation 8 11 faults SIMOTICS TN Series N compact 1LA8 100 Operating Instructions 05 2014 ...
Page 173: ...AC Declaration of conformity 1LA8 area 22 AA KE NSR _1LA8_1PQ8_1PP8_1LP8 ...
