6vacon • 82 ELECTRICAL CABLING AND CONNECTIONS6.1.6 Installation spaceEnough free space shall be left above and below the frequency converter/inverter to ensurepractical and appropriate electrical and cooling connections. The minimum dimensions are givenin the table below. The space left and right to the drive may be 0 mm.6.1.7 Earthing of power unitThe mains cables are connected to the protective earth of the switchgear enclosure.We recommend to connect the motor cables to the common PE of the cabinet/cabinet system.For earthing of the drive itself, use the earthing terminal on the drive mounting plate (see Figure 39)and tighten the earthing bolt to 13.5 Nm.Figure 39. Earthing terminal on mounting plateTable 40. Installation spaceChassis A[mm]B[mm]CH3 100 150CH4 100 200CH5 100 200CH61 100 300CH62 100 400*CH63 200 400*CH64 200 500*CH72 200 400*CH74 200 500**Distance to the cable connection block.Additional space must be reserved forpossibly used ferrite rings. SeeChapter 6.1.1.2.AB11347_0011348 00Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com