Rockwell Automation 294D ArmorStart LT Distributed Motor Controller DeviceNet Version - User Manual - Manual (Page 40)

40 Rockwell Automation Publication 290D-UM001A-EN-P - June 2012
Chapter 2 Installation and Wiring
Installation Precautions The following statements must be read and understood.
Precautions for
Bulletin 290D/291D
Applications
Precautions for
Bulletin 294D Applications
Dimensions ArmorStart LT consists of three components that are non-replaceable. The
Electronic Control Module (ECM); a gland plate for wire entry; and the
aluminum alloy enclosure which makes up the back cover, top housing, and
wiring access door. The ECM includes communications, discrete I/O, status and
diagnostic LEDs, and the node address switches. All mating surfaces are sealed
using foam in place gasket or o-ring.
ATTENTION: The earth ground terminal shall be connected to a solid earth
ground via a low-impedance connection.
ATTENTION: Copper ground conductors are recommended. The ArmorStart LT
external protective earth (PE) pad is aluminum. Refer to your local electrical
installation standard for proper bonding and protection when dissimilar metals
are used.
ATTENTION: An incorrectly applied or installed controller can damage
components or reduce product life. Wiring or application errors, such as
undersizing the motor, incorrect or inadequate AC supply, or out of range
ambient temperatures, may result in malfunction of the system.
SHOCK HAZARD: To prevent electrical shock, open appropriate machine
disconnect switch prior to connecting and disconnecting cables. Risk of shock —
environment rating may not be maintained with open receptacles.
SHOCK HAZARD: The drive contains high voltage capacitors which take time
to discharge after removal of mains supply. Before working on drive, ensure
isolation of mains supply from line inputs (L1, L2, L3). Wait three minutes
for capacitors to discharge to safe voltage levels. Failure to do so may result
in personal injury or death.