Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 91)

5–8 Installing the MessageView Terminal
Publication 2706–816
5. Tighten the mounting nuts alternately until the terminal is held
firmly against the panel. Tighten mounting nuts to a torque of 15
inch-pounds (1.7 Nm). Do not over-tighten.
!
ATTENTION: Tighten mounting nuts to a torque of
15 inch-pounds (1.7 Nm) to provide a proper seal and
to prevent damage to the terminal. Allen-Bradley
assumes no responsibility for water or chemical
damage to the terminal or other equipment within the
enclosure because of improper installation.
The MessageView terminal accepts power supply voltages from 18
to 30 V DC (24V DC nominal). The terminal’s power consumption
is 20 W max. (833 mA @ 24 V DC). Electronic circuitry and an
internal fuse protect the terminal from reverse polarity and
over-voltage conditions.
Note: If the MessageView terminal is connected with reverse
polarity, the terminal will not operate but should not be damaged. As
soon as the polarity is corrected, it should operate normally.
!
ATTENTION: Do not connect the MessageView
terminal to an AC power source. Connecting the
MessageView terminal to an AC power source will
damage the terminal.
!
ATTENTION: The MessageView terminal is
designed for safe use when installed in a NEMA Type
12, 13, 4x (indoor use only), IP65 enclosure.
Connecting DC Power