Rockwell Automation 284D ArmorStart - Safety Version - User Manual - Manual (Page 41)

Installation and Wiring 2-23
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.
Since the ArmorStart is available with a factory installed HOA
keypad option this 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 operat-
ing 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.
DeviceNet Network Installation The ArmorStart Distributed Motor Controller contains the equivalent
of 30 in. (0.76 m) of DeviceNet drop cable's electrical characteristics
and therefore 30 in. of drop cable must be included in the DeviceNet
drop cable budget for each ArmorStart in addition to actual drop cable
required for the installation.
Other DeviceNet System Design Considerations
The separation of the control power and DeviceNet power is
recommended as a good design practice. This minimizes the load on
the DeviceNet supply, and prevents transients which may be present
on the control power system from influencing the communication
controls. For additional information regarding 24V DC control power
system design, see Appendix D.