Grounding the drive, 3 grounding the drive – Rockwell Automation GV3000/SE AC Bookshelf Drive Hardware Ref, Installation, and Troubleshooting User Manual

Page 40

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4-2

GV3000/SE AC Bookshelf Drive Hardware Reference, Version 6.06

4.2 Determining Input, Motor Output, Ground, and

Control Wire Routing for the Drive

All wiring should be installed in conformance with the applicable local, national, and

international codes (e.g., NEC/CEC). Signal wiring, control wiring, and power wiring

must be routed in separate conduits to prevent interference with drive operation. Note

that no wires are to be routed behind the drive. Use grommets, when hubs are not

provided, to guard against wire chafing. Figures 4.1, 4.2, and 4.3 show the wire

routing, grounding terminal, and power terminal strips of the GV3000/SE Bookshelf

drives.

Do not route more than three sets of motor leads through a single conduit. This will

minimize cross-talk that could reduce the effectiveness of noise reduction methods. If

more than three drive/motor connections per conduit are required, shielded cable

must be used. If possible, each conduit should contain only one set of motor leads.

4.3 Grounding the Drive

On 2 to 15 A drives, the grounding terminal is located on the drive faceplate (refer to

figure 4.1). On 24 to 43 A drives, you will need to remove the drive faceplate and cover

to access the grounding terminal (refer to figure 4.2 or 4.3).

Use the following steps to ground the drive:
Step 1. Run a suitable equipment grounding conductor unbroken from the drive’s

ground terminal to the motor’s ground terminal and then to earth ground. See

figures 4.1, 4.2, or 4.3.

Step 2. Connect a suitable grounding conductor to the motor frame, the remote

control station (if used), and the transformer. Run each conductor unbroken

to earth ground.

When adding more than one grounding conductor wire to a single chassis
ground, twist the conductors together.

Step 3. 24 to 43 A drives only: Reattach the front panel and then the cover.

!

ATTENTION: Do not route signal and control wiring with power wiring in

the same conduit. This can cause interference with drive operation.

Failure to observe this precaution could result in damage to, or

destruction of, the equipment.

!

ATTENTION: Unused wires in conduit must be grounded at both ends

to avoid a possible shock hazard caused by induced voltages. Also, if a

drive sharing a conduit is being serviced or installed, all drives using this

conduit should be disabled to eliminate the possible shock hazard from

cross-coupled motor leads. Failure to observe these precautions could

result in bodily injury.

!

ATTENTION: The user is responsible for conforming with all applicable

local, national, and international codes. Failure to observe this precaution

could result in damage to, or destruction of, the equipment.

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