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Connecting
7.1
Line system, motor and braking resistor
Electric shock when the motor terminal box is open
As soon as the converter is connected to the line supply, the motor connections of the converter
may carry dangerous voltages. When the motor is connected to the converter, there is danger
to life through contact with the motor terminals if the motor terminal box is open.
• Close the motor terminal box before connecting the converter to the line supply.
Electric shock caused by damaged cables
The electric cables between the line supply, converter, braking resistor and motor are at
hazardous voltage levels. For damaged electric cables, there is a risk of death when cables are
touched.
• Protect cables that are at hazardous voltage levels against damage or inadvertent access.
7.1.1
Connection overview, converter in degree of protection IP20
Requirement
Only copper cables with an insulation that is designed for an ambient temperature of 75 °C are
permissible.
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
WARNING
WARNING
7
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