Festo 571816, Operating Instructions Manual

Page: 12 / 64

Motor Technology Contactor Set
12
© Festo Didactic 8078459
WARNING
Disconnect from all sources of electrical power!
•
Switch off the power supply before working on the circuit.
•
Please note that electrical energy may be stored in individual components.
Further information on this issue is available in the data sheets and operating
instructions included with the components.
Caution!
Capacitors inside the device may still be charged even after being disconnected
from all sources of voltage.
CAUTION
•
Establishing and disconnecting electrical connections
–
Electrical connections may only be established in the absence of voltage.
– Electrical connections may only be disconnected in the absence of voltage.
•
Maximum permissible current loads for cables and devices must not be exceeded.
–
Always compare the current ratings of the device, the cable and the fuse.
– In the event that these are not the same, use a separate upstream fuse in
order to provide appropriate overcurrent protection.
•
Use only connecting cables with safety plugs for electrical connections.
•
When laying connecting cables, make sure they are not kinked or pinched.
•
Do not lay cables over hot surfaces.
–
Hot surfaces are identified with a corresponding warning symbol.
•
Make sure that connecting cables are not subjected to continuous tensile loads.
•
Devices with an earth terminal must always be grounded.
–
If an earth connection (green-yellow laboratory socket) is available, it must
always be connected to protective earth. Protective earth must always be
connected first (before voltage) and must always be disconnected last (after
voltage).
– Some devices have high leakage current. These devices must be additionally
grounded with a protective earth conductor.