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KPM(T) Series Flat Panel Industrial Monitor
Power Management
The monitor is based on the VESA DPMS and the DVI DMPM standards. To
activate the monitor' s Power Management function, both the video card and the
computer must conform to the VESA DPMS standard and the DVI DMPM standard.
It is a good practice to use isolation transformers on the incoming AC power line to
the system. An isolation transformer is especially desirable in cases in which heavy
equipment is likely to introduce noise onto the AC line. The isolation transformer can
also serve as a step-down transformer to reduce the incoming line voltage to a desired
level. The transformer should have a sufficient power rating (units of volt-amperes)
to supply the load adequately.
Proper grounding is essential to all safe electrical installations. Refer to the relevant
federal, state/provincial, and local electric codes, which provide data such as the size
and types of conductors, color codes and connections necessary for safe grounding of
electrical components. The code specifies that a grounding path must be permanent
(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.
The following figures diagram the power input terminal blocks for the KPM(T)
monitors.
Power Input Terminal Block
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100-240 VAC
Figure 2-3 100-240 VAC Power Input Terminal Block
13
Chapter 2 – Installation
Number
Function
1
AC Line Input
2
AC Neutral Input
Protective Earth
3
Ground
143448 (D)
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