Rockwell Automation GV3000/SE AC Drive Ver. 6.06 Hdwe Ref., Installation, and Troubleshooting Manual User Manual

Page 121

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Compliance with Electromagnetic Compatibility Standards

C-13

C.4.5 I/O Signals

Control (I/O) and signal wiring must be run in continuous, rigid, conductive conduit or

continuously-screened cable as shown in figure C.8. Note that the use of flexible metal

conduit, open wire, or wire in trays is not acceptable. Many flexible metal conduit

products have not been designed for RF containment and are not adequate to

maintain compliance.

C.4.6 Operator Control Stations

The enclosure of an operator’s control station must be constructed of a conductive

metal. The cover of the enclosure should be bonded to the case and not rely on the

hinge for bonding. Standard industrial operator devices, e.g., pushbuttons, switches,

and meters, may be used.

The wiring connecting the operator’s devices to the drive must be run in continuous,

rigid, conductive conduit, continuously-screened armored cable, or equivalent. Note

that the use of flexible metal conduit, open wire, or wire in trays is not acceptable.

Many flexible metal conduit products have not been designed for RF containment and

are not adequate to maintain compliance.

Proper glands must be used to terminate the operator’s control station conduit/cable

at the station and the drive. The gland must secure the cable screen to the conductive

surfaces of the drive and station enclosure. A full 360

°

screen termination is

preferred. Screen pigtails are not permitted.

C.4.7 Connecting to the AutoMax Network

GV3000/SE drive connections to an AutoMax network require the use of coaxial cable

as described in instruction manuals J2-3001 and D2-3308. The coaxial cable must be

run in continuous, rigid, conductive conduit.

Proper glands must be used to terminate the conduit at the AutoMax enclosure and

the GV3000/SE drive. The gland must secure the cable screen to the conductive

surfaces of the drive and AutoMax enclosure. A full 360

°

screen termination is

preferred. Screen pigtails are not permitted.

Figure C.8 – I/O Signal Cable

Stranded copper wire

Plastic insulation

Inner plastic sheath

Compact screen of galvanized (tinned) copper or steel braid

Outer plastic jacket

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