Caution For Compliance With Ec Directive - Mitsubishi Electric MELSEQ FX3S Series User Manual

FX Series Programmable Controllers
3S
User's Manual - Hardware Edition

Caution for compliance with EC Directive

• Please use the FX
under a general industrial environment.
• Programmable controllers are open-type devices that must be installed and used within conductive control
panels. Please secure the control panel lid to the control panel (for conduction). Installation within a control
panel greatly affects the safety of the system and aids in shielding noise from the programmable controller.
• For the control panel, use the product having sufficient strength, fire protectiveness and shielding property
to an installation environment.
• 24 V DC of the power supply must be supplied from the circuit double/reinforced insulated from the main
power supply (MAINS).
Caution for compliance with the LVD directive (EN61010-2-201:2013)
• To an external connection port other than AC power supply terminal and AC input/output terminal, connect
the circuit separated from a dangerous voltage by a double/reinforced insulation.
• Between the commons having the adjacent relay output terminals, if an external power supply is higher
than 120 V AC, the insulation is basic.
Therefore, when using 120 V AC or higher external power supply and 30 V DC/AC or lower external power
supply between the adjacent commons, do not handle 30 V DC/AC or lower external power supply as a
touchable part, (When handling 30 V DC/AC or lower external power supply as a touchable part, add a
basic insulation.)
• Do not wire two or more crimp terminals to one terminal. (If the wiring with two or more wires is needed,
take an appropriate action such as adding an external terminal.)
• For crimp terminals to be used for the wiring applied with 30 V AC or higher, use the products with
insulating sleeves.
• Cutoff device such as a breaker or a circuit protector should be installed in accordance with the following
precautions.
- Use EN60947-1 or EN60947-3 standards.
- Use CP30-BA 2P 1-MD 0.5A or the cutoff device having the cutoff performance equivalent to CP30-BA
2P 1-MD 0.5A.
- Place the cutoff device so that it can be operated easily.
- Specify that the cutoff device is for this equipment.
*1. For the time of compliance with the LVD directive (EN61010-2-201:2013), refer to Requirement for
Compliance with LVD directive.
Caution for Analog Products in use
The analog products have been found to be compliant to the European standards in the aforesaid manual
and directive. However, for the very best performance from what are in fact delicate measuring and controlled
output devices, Mitsubishi Electric would like to make the following points;
As analog devices are sensitive by nature, their use should be considered carefully. For users of proprietary
cables (integral with sensors or actuators), these users should follow those manufacturers' installation
requirements.
Mitsubishi Electric recommends that shielded cables be used. If NO other EMC protection is provided, users
may experience temporary loss or accuracy between +10% / -10% in very heavy industrial areas.
However, Mitsubishi Electric suggests that if adequate EMC precautions are followed for the users complete
control system.
- Sensitive analog cables should not be laid in the same trunking or cable conduit as high voltage cabling.
Where possible, users should run analog cables separately.
- Good cable shielding should be used. When terminating the shield at Earth - ensure that no earth loops
are accidentally created.
- When reading analog values, EMC accuracy can be improved by averaging the readings. This can be
achieved either through functions on the analog product or through a user's program in the FX
PLC main unit.
12
Series programmable controllers while installed in conductive shielded control panels
3S
*1
Standards
Series
3S