5 shielding concept – BECKHOFF EL7037 User Manual

Page 47

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Installation

4.5

Shielding concept

Together with the shield busbar, the prefabricated cables from Beckhoff Automation offer optimum protection
against electromagnetic interference.

Connection of the motor cable to the shield busbar

Fasten the shield busbar supports 1 to the DIN rail 2. The DIN rail 2 must be in contact with the metallic rear
wall of the control cabinet over a wide area. Install the shield busbar 3 as shown below.

Fig. 33: Shield busbar

Connect the cores 4 of the motor cable 5, and then attach the copper-sheathed end 6 of the motor cable 5
with the shield clamp 7 to the shield busbar 3. Tighten the screw 8 to the stop.

Fasten the PE clamp 9 to the shield busbar 3. Clamp the PE core 10 of the motor cable 5 under the PE
clamp 9.

Fig. 34: Screen connection

Connection of the feedback cable

The shield of the feedback cable is connected via the metallic plug fastener when screwing the feedback
plug onto the AM3100.

On the terminal side the shield can also be connected.. Connect the cores of the feedback cable and attach
the copper-sheathed end of the feedback cable to the shield busbar 3 with the shield clamp 7. The motor
cable and the feedback cable can be connected to the shield clamp 7 with the screw 8.

EL70x7

47

Version 1.0

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