A3-39
IM 34M06C11-01E
CAUTION
This product is classified as Class A for use in industrial environments. If used in a
residential environment, it may cause electromagnetic interference (EMI). In such
situations, it is the user’s responsibility to adopt the necessary measures against EMI.
(3) Installation Considerations
From the safety viewpoint of the Low Voltage directive, this equipment should be
installed within a panel enclosure. Using a metallic panel enclosure achieves the shield
effect from the EMC viewpoint. The EMC directive conformance test is conducted with
the equipment installed within a general panel enclosure.
The panel enclosure used during the test has an emissive noise attenuation
characteristic of 15dB average and 25dB maximum (from 30 to 1000MHz).
The considerations that should be observed when installing the FA-M3 are summarized
below. Figure A3.37 illustrates this graphically.
- Use a metallic panel enclosure and metal plate to install the equipment.
- Ground the panel enclosure and metal plate using braided or other wires to ensure
low impedance even at high frequencies.
- Use shielded cables for signal cables leading out of the panel enclosure and
ground the shield at both ends of the cable.
- Secure the base module of this equipment directly onto the metal plate using
screws.
- Connect the both FG terminal and LG terminal of the power supply module of this
equipment to the grounding terminal or metal plate with the shortest wiring possible.
- When coating the metal plate of the panel enclosure, mask the following parts and
expose the metallic surface to ensure electrical conductance.
- the bolts that mounts the FA-M3 to the panel enclosure
- The contact surface to the aluminum chassis of the base module
- The connection to the wiring to the FG and LG terminals of the power supply
module.
- The location of the FG clamp for the shielded cable.
- Design the system so that the opening of the panel enclosure is as small as
possible to minimize possible leakage of noise generated within the panel
enclosure. It is recommended that the diameter of the opening for the cable
should be less than 100mm and that of the opening for ventilation should be less
than 125mm.
Summary of Contents for FA-M3V e-RT3 Plus
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Page 21: ...TOC A 1 IM 34M06C11 01E Hardware Manual Part A Standard Version IM 34M06C11 01E 40th Edition ...
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Page 201: ...A3 41 IM 34M06C11 01E Figure A3 37 Example of Installation Measures ...
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