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 6-2 Cleaning agents and grease
Materials required
Cleaning agent Ethyl alcohol
Grease 2G from Elektrolube
NOTICE
Thermal destruction of the power cable
Cables that have not been properly secured at the connection point, represent a high electrical
transition resistance, which can result in thermal destruction.
● Tighten the screws with the specified torques (Page 103).
Connecting power cables
Electrical connection
6.8 Connecting power cables
SINAMICS PERFECT HARMONY GH150 6SL3825
78 Operating Instructions 05/2020
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