6.10
Laying additional wiring
Keep any additional wiring in the cabinet as short as possible. Route the additional wiring tightly
against the cabinet enclosure or the mounting plates. You must twist unshielded cables
belonging to the same circuit (outgoing and return conductors).
See also
Electromagnetic compatibility (Page 85)
6.11
Connecting the power unit
6.11.1
Connecting power cables
NOTICE
Damage to the power cable/connecting busbars as a result of high temperatures
In operation, the temperatures of the connecting busbars and power cables increase very
significantly. The connecting busbars to connect the power cables are designed for
temperatures up to 100 °C. If unsuitable power cables are connected, then the power cable and/
or its insulation can be damaged. Cable temperatures exceeding 100 °C can damage the
connecting busbars. This can result in damage in the converter.
• Only use a power cable that has conductor or cable insulation that is rated for > 85 °C.
• To protect the connecting busbars, the temperature of the power cable must not exceed
100 °C.
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.
Electrical connection
6.11 Connecting the power unit
3rd Party LCI Control Upgrade
Operating Instructions, 02/2022, A5E31872818
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