Siemens SIMOTICS A 1FU8, Operating Instructions Manual

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Electrical connection
6.2 Connecting the machine
1FU8
Operating Instructions, 02/2016, 5 610 70000 02 000
55
6.2.6 Terminal box
WARNING
Dangerous voltage when the rotor rotates
There are dangerous voltages at the terminals while the machine rotor rotates and
immediately afterwards.
You must observe the following safety instructions to prevent death, injury or material
damage:
•
Do not touch the terminals while the rotor is rotating and immediately afterwards.
• To discharge the winding, after the rotor comes to a standstill, connect the winding to
ground potential.
DANGER
Hazardous voltage
Electric motors have high voltages. When incorrectly handled, this can result in death or
severe injury.
Switch off the machine so that it is in a no-voltage condition before you open the terminal
box.
NOTICE
Damage to the terminal box
If you incorrectly carry out work on or in the terminal box, this can result in material
damage. You must observe the following to avoid damaging the terminal box:
•
Ensure that the components inside the terminal box are not damaged.
• It must be ensured that there are no foreign bodies, dirt or moisture in the terminal box.
•
Close the terminal box using the original seal so that it is dust tight and water tight.
• Use O-rings or suitable flat gaskets to seal entries in the terminal box (DIN 42925) and
other open entries.
•
Please observe the tightening torques for cable glands and other screws.
• When performing a test run, secure the feather keys without output elements.