Siemens S120 ユーザーズマニュアル
Interfaces
8.2 Electrical connections
8.2.3
Shielding, grounding, and equipotential bonding
Rules
Correct installation and connection of the cable shields and protective conductors is very
important, not only for personal safety but also for the effect on emissivity and noise
immunity. Therefore, the following must be carefully observed:
● All cable shields must be connected to the respective housing using clamps or suitable
● All cable shields must be connected to the respective housing using clamps or suitable
terminal or screwed connectors
● Connecting only a few shield conductors or combining shield conductors in one cable is
not permitted
● We recommend that the shield connections of the drive system are used to connect the
shield of the power cable to the power module.
● Refer to the EMC installation guidelinelines (order number 6FC5297-□AD30-0AP□)
issued by the converter manufacturer.
DANGER
Risk of electric shock!
Open cables lead to voltages due to capacitive coupling.
Open or unused cables, especially electric cables which can be touched, must be insulated.
Open cables lead to voltages due to capacitive coupling.
Open or unused cables, especially electric cables which can be touched, must be insulated.
The insulation must be able to withstand the rated voltage.
NOTICE
Unshielded or incorrectly shielded cables can lead to faults in the drive – particularly the
encoder – or in external devices.
Note the topics mentioned above!
Note the topics mentioned above!
NOTICE
High leakage currents may damage other devices if the motor PE is not directly connected
to the power unit.
Connect the motor PE to the power unit over a large surface area and without taking a
Connect the motor PE to the power unit over a large surface area and without taking a
circuitous route.
1FW6 Built-in torque motors
Configuration Manual, 05/2009, 6SN1197-0AE00-0BP3
Configuration Manual, 05/2009, 6SN1197-0AE00-0BP3
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