Siemens SINAMICS SM120 Operating Instructions Manual page 66

Electrical connection
6.1 Safety instructions for electrical connections
Danger as a result of defective seals
When working on the device, seals at the doors, roof panels as well as front, rear and side
panels can be damaged. Operating the device with defective seals can result in death, serious
injury or material damage.
Replace the defective seals before commissioning. Observe the environmental conditions
stated in the technical specifications.
Short-circuits
Damaged cables, or their improper routing, can cause damage to property and personal
injury.
● Only use cables that are completely intact and not damaged. Correctly route the cables.
● Make sure that a short-circuit cannot occur on the power cables due to failure of the
● Check the electrical connections after service work.
NOTICE
Using magnetic parts
The use of magnetic parts (e.g. magnetic cable clamps) is not permitted. Using magnetic
parts can damage the drive.
Only use parts that consist of non-magnetic material.
NOTICE
Improper shrinking of cable terminations
If you are connecting the mains and motor-side power cables, when shrinking the cable
terminations, other control lines and fiber-optic cables in the surrounding cable channels can
become damaged.
When shrinking, ensure not to damage cables in the surrounding cable channels.
Note
Control and signal lines must always be connected according to the circuit diagrams supplied
with the unit. Detailed information about connecting the components is given in the
interconnection diagram.
66
WARNING
WARNING
Do not interchange input and output terminals.
insulation as a result of incorrect cable installation.
SINAMICS SM120 6SL38715
Operating Instructions 07/2015