9.3.2 Connecting-up information
Comply with the rating plate data (type plate) and circuit diagram in the terminal box. Use
suciently dimensioned connection cables.
Note
System compatibility for connection
System compatibility is only guaranteed if shielded power cables are used and the shield is
electrically connected through a large surface area to the metal motor terminal box (using metal
EMC cable glands) or using a power connector.
Incorporate the shields in the protective grounding concept. Connect open-circuit conductors,
conductors that are not used or electrical cables that can be touched to protective ground. If the
brake feeder cables in the SIEMENS cable accessories are not used, then connect the brake
conductor cores and shields to the cabinet ground. Open-circuit cables result in capacitive
charges.
Use EMC cable glands for xed cable entries. The cable glands are screwed into the threaded
holes of the terminal box.
Close and seal any unused threads using a metal screw plug.
Note
Connection with aluminum conductors
Aluminum conductors can also be used for motors with higher powers and currents (e.g. shaft
height 280). If you are using aluminum conductors, comply with the following additional
points:
• Use only cable lugs that are suitable for connecting aluminum conductors.
• Immediately before inserting the aluminum conductor, remove the oxide layer from the
contact areas on the conductor and/or the mating piece, by brushing or ling.
• Then grease the contact areas immediately using neutral Vaseline in order to avoid re-
oxidation.
Note
Terminal boxes with aluminum connecting bars
For terminal boxes with aluminum connecting bars (type 1XB7), copper (Cu) cables with copper
(Cu) cable lugs can also be connected.
Electrical connection
9.3System integration
1PH8 SIMOTICS M main motors
Conguration Manual, 12/2022, A5E51895839A 225
To Next Page
Loading...
Need help?
General