Other system design considerations, Electromagnetic compatibility (emc), General notes (bulletin 284e only) – Rockwell Automation 284E ArmorStart with EtherNet/IP - User Manual User Manual

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Rockwell Automation Publication 280E-UM001B-EN-P - July 2012

Chapter 2 Installation and Wiring

• Routing cables should be done in such a manner to minimize inadvertent

exposure and/or damage.

• Additionally, if conduit or other raceways are not used, it is recommended

that strain relief fittings be utilized when installing the cables for the
control and power wiring through the conduit openings.

The working space around the ArmorStart may be minimized as the ArmorStart
does not require examination, adjustment, servicing or maintenance while
energized. In lieu of this service, the ArmorStart is meant to be unplugged and
replaced after proper lockout/tag-out procedures have been employed.

The Hand-Off-Auto (HOA) is a factory-installed option that the user may select.
The HOA keypad may require the ArmorStart to be selected and installed as
follows if the application requires frequent use of the hand operated interface by
the equipment operator:

1.

They are not less than 0.6 m (2 ft) above the servicing level and are within
easy reach of the normal working position of the operator.

2.

The operator is not placed in a hazardous situation when operating them.

3.

The possibility of inadvertent operation is minimized.

If the operated interface is used in industrial establishments where the conditions
of maintenance and supervision ensure that only qualified persons operate and
service the ArmorStart's operator interface, and the installation is located so that
inadvertent operation is minimized, then other installation locations with
acceptable access can be provided.

Other System Design Considerations

The user should keep 3-phase power cabling at least 6 in. away from the
EtherNet/IP network to avoid noise issues. EtherNet/IP is an unpowered
network therefore if device status is important when the disconnect is in the OFF
position, the A3 terminal must have an unswitched power source.

Electromagnetic
Compatibility (EMC)

The following guidelines are provided for EMC installation compliance.

General Notes (Bulletin 284E only)

• The motor Cable should be kept as short as possible in order to avoid

electromagnetic emission as well as capacitive currents.

• Conformity of the drive with CE EMC requirements does not guarantee

an entire machine installation complies with CE EMC requirements.
Many factors can influence total machine/installation compliance.

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