Siemens SINAMICS S120 Manual page 222

Control Units, Control Unit Adapters and operating components
7.2 Safety instructions for Control Units and Control Unit Adapters
NOTICE
Device failure due to unshielded or incorrectly laid cables to the temperature sensors
Unshielded or incorrectly laid cables to the temperature sensors can cause induced
voltages from the power side to the signal-processing electronics. This can cause massive
interferences of all signals (error messages) through to the failure of individual components
(damage of the devices).
• Use only shielded cables to the temperature sensors.
• If cables to temperature sensors are laid together with the motor cable, use twisted pairs
• Connect the cable shield to ground potential through a large surface area.
• Recommendation: Use appropriate Motion Connect cables.
NOTICE
Damage caused by the use of incorrect DRIVE-CLiQ cables
Damage or malfunctions can occur on the devices or system when DRIVE-CLiQ cables are
used that are either incorrect or have not been approved for this purpose.
• Only use suitable DRIVE-CLiQ cables that have been approved by Siemens for the
Note
Functional faults caused by dirty DRIVE-CLiQ interfaces
Malfunctions can occur in the system through the use of polluted DRIVE-CLiQ interfaces.
• Close any unused DRIVE-CLiQ interfaces with the supplied cover plates.
Note
Function equipotential bonding for distributed DRIVE-CLiQ nodes
Integrate all of the components that are connected via DRIVE-CLiQ into the function
equipotential bonding concept. The connection should be preferably established by mounting
on metallic bare machine and plant components that are connected with one another using
an equipotential bonding conductor.
Alternatively, you can establish equipotential bonding using a conductor (min. 6 mm²), which
as far as possible, is routed in parallel to the DRIVE-CLiQ cable. This involves all distributed
DRIVE-CLiQ participants, e.g. SME2☐, SME12☐ and DME20 (☐ = 0 or 5).
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and separately shielded cables.
particular application.
Manual, (GH6), 07/2016, 6SL3097-4AL00-0BP5
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