Siemens SINUMERIK 808D ADVANCED Commissioning Manual page 133

WARNING
Personal injury and damage to property from improper connections
Improper connections have high risks of electrical shock and short circuit, which will jeopardize personal safety
and equipment.
The drive must be directly connected with the motor. It is not permissible to connect a capacitor, inductor or
•
filter between them.
The line supply voltage must be within the allowable range (refer to the drive rating plate). Never connect
•
the line supply cable to the motor terminals U, V, W or connect the motor power cable to the line input
terminals L1, L2, L3.
Never wire up the U, V, W terminals in an interchanged phase sequence.
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If the CE marking for cables is mandatory in some cases, the motor power cable, line supply cable and
•
brake cable used must all be shielded cables.
For terminal box connection, make sure that the clearances between non-insulated live parts are at least
•
5.5 mm.
Route signal cables and power cables separately in different cable conduits. The signal cables shall be at
•
least 10 cm away from the power cables.
Cables connected may not come into contact with rotating mechanical parts.
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Connecting the cable shields
If the CE marking requirements for cables are mandatory, the mains input cable and the motor cable used must all be
shielded type of cables. In that case, you can use the shielding plates as a ground connection between the cable shielding
layer and a common ground point.
The shielding plates can also be helpful in better fixing cables (the unshielded motor cable and the mains input cable) in
place.
The illustration below shows you how to fix cables and to make a shielding connection with the cable.
Commissioning Manual
01/2017
133