
6.5
Connecting the power unit
6.5.1
Connecting power cables
Detailed information about cabling of the converter is provided in the circuit diagrams supplied.
● Please ensure that the maximum cable lengths between the converter and motor are not
exceeded.
● Make sure that the permissible cable capacitance is not exceeded.
● Use appropriate screws for the cable lugs provided.
● The tightening torque for the M12 screws is 50 Nm.
● Clean the contact surfaces before screwing the connections.
● Apply a thin layer of grease to the screws.
Table 6-1
Cleaning agents and grease
Materials required
Cleaning agent
Ethyl alcohol
Grease
2G from Elektrolube
Procedure
1. Cut out the floor panel for the power cables. When doing this observe the information in the
dimension drawing.
NOTICE
Damage caused by electrical flashovers and arcing
Chips are created when cutting out the floor panel. Metal chips in the device shorten
clearances and creepage distances and can therefore result in arcing and flashovers.
● Cut out the floor panel outside the device.
● Carefully ensure that no metal chips are left in the device.
● Protect cut edges to prevent damage to the cable insulation.
2. Connect the line supply and device - as well as the device and the machine - with the
required number of power cables connected in parallel.
3. Insert the power cables into the power unit from below, upwards through the hole in the
baseplate.
Anchor bars are provided for strain relief. On the system side, only use clamps that are
suitable for the short circuits that could potentially occur.
4. Fix cable sealing ends to the power cables.
Electrical connection
6.5 Connecting the power unit
SINAMICS SL150 6SL38600UL432AA0Z
Operating Instructions Rev.201910281433 EXAMPLE
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Содержание SINAMICS SL150
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