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Electrical connection
6.2 Important information about the electrical connection
Electric shock caused by high leakage currents
When touching conductive parts of the machine, high leakage currents can result in an electric
shock.
• For high leakage currents, observe the increased requirements placed on the protective
• For high leakage currents, attach warning symbols to Power Drive System .
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 off the power supply, active motor parts can have a charge
exceeding 60 μC. In addition, even after withdrawing the connector 1 s after switching off the
voltage, more than 60 V can be present at the free cable ends.
• Wait for the discharge time to elapse.
6.2
Important information about the electrical connection
Naturally cooled 1FN3 linear motors have 3 permanently connected single-core cables to
connect the power and 1 protective conductor connection 0.5 m long.
The motor has 2 temperature signal conductors with a minimum length of 0.25 m to connect
the temperature sensors to the drive. The two signal cables are combined and encased with a
protective flexible tube and a shrink-on sleeve to form one signal cable.
All core ends are open.
Table 6-1
Data of the cables at the primary section
Cables at the
primary section
Power cable
Signal cable
Connect the power cables at the points provided in the power module.
Connect the signal cables at the points provided in a sensor module.
When connecting cables with open conductor ends, ensure there is correct grounding.
88
WARNING
conductor. The requirements are laid down in standards DIN EN 61800-5-1 and DIN EN
60204-1.
WARNING
Outer diameter
in mm
3.2
3.5
No. of cores x
Minimum permissible bending radius
crosssection
in mm
2
Cables permanently
4 x (1 x 1.5)
single cores
2 x (1 x 0.14)
Operating Instructions, 06/2023, A5E52220465B AB
in mm
Cables freely routed
routed
14.0
14.0
Naturally-Cooled 1FN3 Linear Motors
28.0
28.0
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