Permissible Line Systems - Siemens SIMOTICS T-1FW3 Configuration Manual

Electrical connection

8.1 Permissible line systems

NOTICE
Destruction of the motor if it is directly connected to the three-phase line supply
The motor will be destroyed if it is directly connected to the three-phase line supply.
• Only operate the motors with the appropriately configured converters.
Danger of severe injuries caused by unexpected movements of the motor
Rotating and unexpected motor movement may cause death, serious injury and/or property
damage.
• Never work in the vicinity of rotating parts for a switched-on machine.
• Keep persons away from rotating parts and areas where there is a danger of crushing.
NOTICE
Damage to components that are sensitive to electrostatic discharge
The DRIVE-CLiQ interface has direct contact to components that can be
damaged/destroyed by electrostatic discharge (ESD). Encoder systems and temperature
sensors are components that can be destroyed by electrostatic discharge (ESD).
Components that are sensitive to electrostatic discharge can be damaged if you touch the
connections with your hands or with electrostatically charged tools.
• Carefully observe the information in Chapter "Equipment damage due to electric fields
8.1 Permissible line systems
In combination with the SINAMICS S120 drive system, the motors are generally approved for
operation on TN and TT line supply systems - with grounded neutral point - and on IT line
supply systems.
If you operate the drive system on IT line supply systems, then you must provide a protective
device that shuts down the drive system when a ground fault occurs.
If you operate the motor with grounded line conductor, then you must use an isolating
transformer with grounded neutral point (on the secondary) between the line supply and the
drive system. In this way you avoid inadmissibly stressing the motor insulation.
298
WARNING
or electrostatic discharge (Page 15)".
1FW3 complete torque motors
Configuration Manual, 08/2020, A5E46027705B AA