Connection Mains connection and grounding
SD-/SQ series 4 - 5
4.2 Mains connection and grounding
Refer to Section 3.6on how to ground the robot arm.
4.2.1 Control unit CR2D and drive unit DU2
Make sure that the mains voltage and the power switch of the control unit or the drive unit are
switched off.
Release the four screws on the cover and remove the cover. Release the four screws on
the power switch cover and remove this cover.
Remove the terminal cover of the power switch .
Prepare the mains line (feed) and the grounding cable. Use cable with a minimum cross-section
of 2.5 mm².
Connect the mains line to the terminals of the power switch according to Fig. 4-5 . Connect the
grounding cable with the grounding cable marked PE to the housing of the control unit.
Fix the terminal cover of the power switch back into place. You will hear a click when it locks in.
lay the mains line through the cable feed in the rear cover .
Fix the cover and the power switch cover into place.
E
ATTENTION:
Only carry out connection work at the control unit or the drive unit when the main switch for the
power supply is switched off and protected against being switched back on.
R001460E
Fig. 4-5:
Connection of mains line and grounding on control unit CR2D and on drive unit DU2
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