5015SLR Flat Panel Industrial Touch Monitor Chapter 2 – Installation
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144812(D)
(no solder), continuous, and able to safely conduct the ground-fault current in the
system with minimal impedance (minimum wire required is 18 AWG, 1 mm).
Observe the following practices:
•
Separate the power and ground (P. E., or Protective Earth) cable from signal cables at
the point of entry to the enclosure. To minimize the ground wire length within the
enclosure, locate the ground reference point near the point of entry for the plant
power supply.
•
All electrical racks or chassis and machine elements should be Earth Grounded in
installations where high levels of electrical noise can be expected. The rack/chassis
should be grounded with a ground rod or attached to a nearby Earth structure such as
a steel support beam. Connect each different apparatus to a single Earth Ground point
in a "star" configuration with low impedance cable. Scrape away paint and other
nonconductive material from the area where a chassis makes contact with the
enclosure.
