Safety information
2.4 Notes for operator protection
Installation and Operating Instructions SINAMICS G180
Operating Instructions, 02/2019, 4BS0751-007
17
Safety-relevant information for working on the inverter
Live, moving or rotating parts
Inverters have live, moving or rotating parts.
Death or serious injury can result if any essential covers are removed without authorization
or in the case of improper use or incorrect installation or operation.
Always take all the necessary precautions before working on the device.
High voltages cause death or serious injury if the safety instructions are not observed or if
the equipment is handled improperly.
Voltages of more than 50 V are present when this unit is operational. These voltages may
remain for some time after switching off or as long as the motor is turning over.
Make sure that work is only carried out by qualified personnel under due observance of the
five safety rules, the information in these operating instructions, and the instructions on the
product itself.
Auxiliary and external supply systems
Hazardous voltages (e.g. control voltage, signal voltage, supply voltage for heaters and
fans) can persist even after the inverter has been switched off. Contact with live parts can
result in death or serious injury.
Make sure that work is only carried out by qualified personnel under due observance of the
five safety rules, the information in these operating instructions, and the instructions on the
product itself.
If you carry out servicing work on the inverter without safely disconnecting the power
supply, serious injury or death due to electric shock can occur. The PTC input is not an
Emergency Off input which safely disconnects the inverter or the motor from the line
supply.
Safely and reliably disconnect the power supply before opening covers or terminal boxes at
the inverter. For example, use a main switch.
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