Rockwell Automation 284A ArmorStart with ArmorPoint Backplane - Getting Started - Manual (Page 14)

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Publication 284A-QS001C-EN-P - July 2006
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 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.
AC Supply Considerations
Ungrounded Distribution Systems
Disconnecting MOVS
To prevent drive damage, the MOVs connected to ground shall be
disconnected if the drive is installed on an ungrounded distribution system
where the line-to-ground voltages on any phase could exceed 125% of the
nominal line-to-line voltage. To disconnect these devices, remove the
jumper shown in Figure 9, Jumper Removal.
1. Before installing the Bulletin 284, loosen four mounting screws.
2. Unplug control module from the base unit by pulling forward.
ATTENTION
!
The Bulletin 284 contains protective MOVs that are
referenced to ground. These devices should be
disconnected if the Bulletin 284 is installed on an
ungrounded distribution system.