Siemens SIMOTICS L-1FN3 - Inspection and maintenance

WARNING
Risk of electric shock due to incorrect connection
There is a risk of electric shock if direct drives are incorrectly connected. This can result in death,
serious injury, or material damage.
• Motors must always be precisely connected up as described in these instructions.
• Direct connection of the motors to the three-phase supply is not permissible.
• Consult the documentation of the drive system being used.
WARNING
Risk of electric shock
Voltage is induced at the power connections of the primary section each time a primary section
moves with respect to a secondary section - and vice versa.
When the motor is switched on, the power connections of the primary section are also live.
If you touch the power connections you may su󹪜er an electric shock.
• Only mount and remove electrical components if you have been quali󹪝ed to do so.
• Only work on the motor when the system is in a no-voltage condition.
• Do not touch the power connections. Correctly connect the power connections of the
primary section or properly insulate the cable connections.
• Do not disconnect the power connection if the primary section is under voltage (live).
• When connecting up, only use power cables intended for the purpose.
• First connect the protective conductor (PE).
• First connect the power cable to the primary section before you connect the power cable to
the converter.
• First disconnect the connection to the converter before you disconnect the power
connection to the primary section.
• In the 󹪝nal step, disconnect the protective conductor (PE).
WARNING
Risk of electric shock as a result of residual voltages
There is a risk of electric shock if hazardous residual voltages are present at the motor
connections. Even after switching o󹪜 the power supply, active motor parts can have a charge
exceeding 60 μC. In addition, even after withdrawing the connector 1 s after switching o󹪜 the
voltage, more than 60V can be present at the free cable ends.
• Wait for the discharge time to elapse.
Maintenance
9.1Safety instructions for maintenance
Naturally-Cooled 1FN3 Linear Motors
Operating Instructions, 06/2023, A5E52220465B AB 111