Standards
10
FX3U-16CCL-M User's Manual
Type: Programmable Controller (Open Type Equipment)
Models: MELSEC FX
3U series manufactured
 from August 1st, 2011        FX
3U-16CCL-M
Caution to conform with EC Directives
• Installation in Enclosure
Programmable logic controllers are open-type devices that must be installed and used within conductive 
control cabinets. Please use the programmable logic controller while installed within a conductive shielded 
control cabinet. Please secure the cabinet door to the control cabinet (for conduction).
Installation within a control cabinet greatly affects the safety of the system and aids in shielding noise from 
the programmable logic controller.
• Control cabinet
- The control cabinet must be conductive.
- Ground the control cabinet with the thickest possible grounding cable.
- To ensure that there is electric contact between the control cabinet and its door, connect the cabinet and 
its doors with thick wires.
- In order to suppress the leakage of radio waves, the control cabinet structure must have minimal 
openings. Also, wrap the cable holes with a shielding cover or other shielding devices.
- The gap between the control cabinet and its door must be as small as possible by attaching EMI gaskets 
between them.
*1. These wires are used to improve the conductivity between the door and control cabinet.
Standard Remark
EN61131-2:2007
Programmable controllers
- Equipment requirements and tests
Compliance with all relevant aspects of the standard.
EMI
• Radiated Emission
• Conducted Emission
EMS
• Radiated electromagnetic field
• Fast transient burst
• Electrostatic discharge
• High-energy surge
• Voltage drops and interruptions
• Conducted RF
• Power frequency magnetic field
Shielding cover
Shielded cable
Wires*1
EMI gasket