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Unexpected machine movement caused by radio devices or mobile phones
Using radio devices, cellphones, or mobile WLAN devices in the immediate vicinity of the
components can result in equipment malfunction. Malfunctions may impair the functional
safety of machines and can therefore put people in danger or lead to property damage.
• Therefore, if you move closer than 20 cm to the components, be sure to switch off radio
• Use the "SIEMENS Industry Online Support App" or a QR code scanner only on equipment
NOTICE
Damage to motor insulation due to excessive voltages
When operated on systems with grounded line conductors or in the event of a ground fault in
the IT system, the motor insulation can be damaged by the higher voltage against ground. If
you use motors that have insulation that is not designed for operation with grounded line
conductors, you must perform the following measures:
• IT system: Use a ground fault monitor and eliminate the fault as quickly as possible.
• TN or TT systems with grounded line conductor: Use an isolating transformer on the line
Fire due to inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating of components with subsequent fire
and smoke. This can cause severe injury or even death. This can also result in increased
downtime and reduced service lives for devices/systems.
• Ensure compliance with the specified minimum clearance as ventilation clearance for the
NOTICE
Overheating due to inadmissible mounting position
The device may overheat and therefore be damaged if mounted in an inadmissible position.
• Only operate the device in admissible mounting positions.
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA
WARNING
devices, cellphones or WLAN devices.
that has already been switched off.
side.
WARNING
respective component.
Fundamental safety instructions
2.1 General safety instructions
25
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