9457 Industrial Computer
3-18
step toward the solution of the line variations is to correct any possible feed problem in the
distribution system. If this measure does not solve the problem, a constant voltage transformer
must be used.
The constant voltage transformer stabilizes the input voltage to the 9457 by compensating for
voltage changes at the primary in order to maintain a steady voltage at the secondary. When
using a constant voltage transformer, check that the power rating is sufficient to supply the
9457.
Installing the System into a Panel
The 9457’s rugged design allows it to be installed in most industrial environments. The 9457
is generally placed in a NEMA 4/4X/12 enclosure to protect against contaminants such as
dust, moisture, etc. Metal enclosures also help minimize the effects of electromagnetic radia-
tion that may be generated by nearby equipment.
The 9457 is designed to be installed in one of two basic ways. The most common and most
compact configuration entails mounting the computer module directly beneath the monitor
module in a panel installation. This configuration uses 18-inch (457 mm) cables between the
computer module and the monitor module.
Figure Chapter 3 -10. 9457 Monitor And Computer Modules Mounted Together
In this configuration, the combined monitor and computer modules occupy a minimal
amount of space.
The second configuration permits mounting the monitor module up to six feet (1.8 m)
away from the computer module, using 72-inch (1.82 m) cables. The computer module
may be mounted in any position relative to the monitor module, so long as it is mounted
upright and is provided adequate ventilation. This requires installing the 9457-RMK
Remote Mount Kit, as described earlier in this chapter.
