Siemens SIMOTICS M-1PH3 Manual page 91

Electric shock or short circuit due to improper connections
Improper connections have high risks of electric shock and short circuit, which will
jeopardize personal safety and equipment.
• The converter must be directly connected with the motor. It is not permissible to connect
• The line supply voltage must be within the allowable range (refer to the converter rating
• Never wire up the U, V, W terminals in an interchanged phase sequence.
• If the CE marking for cables is mandatory in some cases, the power cable, line supply
• For terminal box connection, make sure that the clearances between non-insulated live
• Route the DRIVE-CLiQ MOTION-CONNECT cable and the power cable separately in
• Cables connected may not come into contact with rotating mechanical parts.
Risk of electric shock and fire from a network with an excessively high impedance
Excessively low short-circuit currents can lead to the protective devices not tripping or
tripping too late, and so causing electric shock or a fire.
• In the case of a conductor-conductor or conductor-ground short-circuit, ensure that the
• You must use an additional residual-current device (RCD) if a conductor-ground short
Risk of electric shock and fire from a network with an impedance that is too low
Excessively high short-circuit currents can lead to the protective devices not being able to
interrupt these short-circuit currents and being destroyed, and so causing electric shock or a
fire.
• Ensure that the uninfluenced short-circuit current at the line terminal of the converter
1PH3 main motors
Equipment Manual, 01/2021, A5E43087278-004
WARNING
a capacitor, inductor or filter between them.
plate). Never connect the line supply cable (for the converter) to the motor terminals U,
V, W or connect the motor power cable to the line input terminals L1, L2, L3.
cable, and DRIVE-CLiQ MOTION-CONNECT cable used must all be shielded cables.
parts are at least 5.5 mm.
different cable conduits. The DRIVE-CLiQ MOTION-CONNECT cable shall be at least 10 cm
away from the power cable.
WARNING
short-circuit current at the point where the converter is connected to the line supply at
least meets the minimum requirements for the response of the protective device used.
circuit does not reach the short-circuit current required for the protective device to
respond. The required short-circuit current can be too low, especially for TT systems.
WARNING
does not exceed the breaking capacity (SCCR or Icc) of the protective device used.
Electrical connection
6.4 System integration
89