WARNING
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.
WARNING
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.
Do not interchange input and output terminals.
● Make sure that a short-circuit cannot occur on the power cables due to failure of the
insulation as a result of incorrect cable installation.
● 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.
NOTICE
Incorrectly opening the doors
If you incorrectly open the doors, then this can damage the locking mechanism.
Open the doors as described in Chapter "".
Electrical connection
6.1 Safety instructions for electrical connections
SINAMICS SM120 6SL38855?B
74 Operating Instructions 12/2015
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