5-2 Electrical installation REFUspeed RS51
DOK-RD500*-RS51*******-IB02-EN-P
feeder cables should also be shielded outside the cabinet, or at least
screened using barriers. Suitable motor cables are, for example, Siemens
PROTOFLEX-EMV-CY (4 x 2.5 mm² ... 4 x 120 mm²) with Cu shield.
Cables with steel shield are not suitable.
To connect the shield at the motor, a suitable PG gland with shield con-
nection can be used (e.g. „SKINDICHT SHV/SRE/E“ from the Lapp Com-
pany, Stuttgart). It should be ensured that the connection between the
motor terminal box and the motor housing has a low impedance. Other-
wise, use an additional grounding strap between them. Never use plastic
motor terminal boxes!
The shield between the motor and AC drive converter may not be inter-
rupted by installing components such as output reactors, sinusoidal filters,
motor filters, fuses, contactors. The components must be mounted on
mounting panels which also simultaneously serve as shield connection for
the incoming and outgoing motor cables. If required, metal barriers may
be required to shield the components.
Rule 10
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
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