Commissioning
8.2 Safety instructions
SIMOTICS M-1FE2 built-in motors
166 Hardware Installation Manual, 04/2020, A5E50074509B AA
Electric shock when checking the insulation resistance
During the measurement and immediately afterwards, high voltages can be present at the
terminals that can cause death or severe injury as result of an electric shock.
Contact to live parts causes electric shocks.
• Work on power installations must only be carried out by specialists.
• Before measuring the insulation resistance, read the manual for the insulation
resistance meter you are going to use.
• Never touch the terminals when making measurements or immediately after the
measurement.
• Check the connected supply feeder cables to ensure that the line supply voltage cannot
be connected.
Danger to life from ejected parts
Rotating rotors and the resulting ejected parts can cause death or injury.
• Secure rotating output elements using the appropriate safety guards.
• Secure loose parts, e.g. feather keys to prevent the ejection.
Danger to life caused by machine movement and loose objects
Machine movement and loose objects that can fall out or be ejected can cause death or
severe injury.
• Ensure that the machine has been completely installed and all of the setting work
completed.
• Ensure that nobody is at risk at switch on.
• Before switching on, check that there are no loose objects in or on the motor that can
fall or be flung off.
Danger to life when the cooling system bursts
The motor will overheat if it is operated without cooling. When cooling water enters the hot
motor, this immediately and suddenly generates hot steam that escapes under high
pressure. This can cause the cooling water system to burst, resulting in death, severe injury
and material damage.
• Never operate the motor without cooling.
• Only commission the cooling water circuit when the motor is in a cool condition.
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