Siemens SINAMICS G220 - Page 33

WARNING
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 or faults and damage to the devices.
Malfunctions may impair the functional safety of machines and can therefore put people in
danger or lead to property damage.
• Avoid operating radio devices, cellphones and mobile WLAN devices in the direct vicinity of
converters and operating units.
• Scan the machine readable code, e.g. a QR code, from the farthest distance possible or
switch o󹪜 the converter power supply before scanning.
• Only operate built-in devices with the control cabinet doors closed.
• When control cabinet doors are open, only quali󹪝ed electrical personnel are allowed to carry
out service and maintenance work.
CAUTION
Radio frequency interference in residential areas
When you operate EMC category C2 devices in residential areas, the devices can cause radio
frequency interference.
When you operate EMC category C3 or C4 devices in residential areas, it is to be expected that
the devices will cause radio frequency interference.
• Do not operate EMC category C2 devices in residential areas.
• Do not operate EMC category C3 or C4 devices in public low-voltage networks supplying
residential buildings.
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
side.
Fundamental safety instructions
2.1General safety instructions
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 31