Electrical Voltages Are Induced When The Rotor Is Rotated; Inspections In The Event Of Faults - Siemens SIMOTICS DP Operating Instructions Manual

Danger when cleaning using compressed air
When cleaning parts of the machine using compressed air, loose parts or particles of dirt can be
flung around and cause injury.
• Installed suitable extraction measures.
• Wear personal protective equipment, such as protective glasses, gloves, overall.
• Ensure that personnel not involved in the work are not in the danger area.
Damage if the machine is not maintained
The machine can be damaged if it is not appropriately maintained. This can cause faults which
can result in eventual or immediate death, serious injury or material damage.
• Maintain the machine at the specified maintenance intervals.
Damage from foreign bodies in the machine
Foreign bodies such as dirt, tools or loose components 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.
• Ensure that no foreign bodies are left in or on the machine.
• Securely attach all loose parts once you have completed the work.
• Carefully remove any dirt.
9.2.1.1

Electrical voltages are induced when the rotor is rotated

Danger due to induced voltages
Electrical voltages are induced in the stator when rotating the rotor. Touching the stator
connections can result in death or severe injury.
• Before starting any work at the machine, carefully ensure that the system is secured to
prevent the rotor accidentally turning in compliance with the regulations.
• If you must rotate the rotor, then ensure that each phase is grounded.
9.2.2

Inspections in the event of faults

Natural disasters or unusual operating conditions, such as overloading or short circuit, are faults
that overload the machine electrically or mechanically.
Immediately perform an inspection after such faults.
1FZ shaft height 280
Operating Instructions, 02/2022, A5E51698698A
Maintenance
9.2 Inspection and maintenance
97