Siemens SIMOTICS SD Operating Instructions Manual page 74

Operation
8.1 Safety instructions
Risk of burning
Electrical machines have hot surfaces. Fatal or severe injuries and substantial material
damage can occur if the required covers are removed or if the machines are not handled,
operated, or maintained properly.
Do not touch the machine in operation and wait until the machine has completely cooled
down.
NOTICE
Premature bearing failure
The bearings can be damaged if the following is not observed.
Be sure to comply with the minimum radial load of 30% of the cylindrical roller bearings in
accordance with catalog data.
Faults during operation
Changes with respect to normal operation indicate that there is an impaired function. This
can cause faults which can result in eventual or immediate death, severe injury or material
damage.
For instance, observe the following signs that could indicate a malfunction:
• Higher power drawn than usual
• Higher temperatures than usual
• Unusual noises
• Unusual smells
• Activation of monitoring equipment
Immediately contact the maintenance personnel if you identify any irregularities If you are in
doubt, immediately switch off the machine, being sure to observe the system-specific safety
conditions.
NOTICE
Risk of corrosion due to condensation
When changing machines and/or ambient temperatures, air humidity can condense within
the machines.
• If available, remove the screw plugs to drain the water depending on the ambient and
• Reinsert them afterwards.
If the motor is equipped with drain plugs, then the water can drain away automatically.
74
WARNING
WARNING
operating conditions.
Operating Instructions, 05/2014, 5 610 00000 02 000
Low-voltage motors