88 Electrical installation Connection procedure for frames R4 and R51. Remove the front cover. IP21 units: Release the retaining clip with a screwdriver(a) and lift the cover from the bottom outwards (b).2. For IP21 drives: Remove the cable entry box cover by undoing the mountingscrew.3. For frame R4: Remove the EMC shroud that separates the input and outputcabling if needed for earier installation.4. Remove the shroud on the power cable terminals by releasing the clips and liftingthe shroud up from the sides with a screwdriver (a). Knock out holes in the shroudfor the cables to be installed (b).5. Attach the residual voltage warning sticker in the local language next to thecontrol unit top.6. Cut adequate holes into the rubber grommets. Slide the grommets onto thecables. Slide the cables through the holes of the bottom plate and attach thegrommets to the holes.7. Prepare the ends of the input power and motor cables as illustrated in the figure.Note: Bare shield will be grounded 360 degrees under the grounding clamp.8. Ground the cable shields 360 degrees under the grounding clamps.9. Connect the twisted cable shields to the grounding terminals.10. Connect the phase conductors of the input cable to the L1, L2 and L3 terminalsand the phase conductors of the motor cable to the T1/U, T2/V and T3/Wterminals. Tighten the screws to the torque given in the figure below. Note forframe R5: For easier installation, the power cable terminals can be removed byundoing their mounting nuts. Fasten the terminals back to their place by tighteningthe mounting nuts.11
