Emc Instructions - Mitsubishi Electric MELDAS 600 Series Connection Manual

2. EMC Instructions

The EMC Instructions largely regulate the following two items.
• Emission
• Immunity
The details of each level are classified below in Table 1. It is assumed that the Standards and test details
required for a machine tool are the same as these.
Class Name
Radiated noise
Emission
Conductive noise
Static electricity
electrical discharge
Radiation immunity
Burst immunity
Immunity
Conductive immunity
Power supply
frequency field
Power supply dip
(fluctuation)
Surge
APPENDIX 3 EMC INSTALLATION GUIDELINES
2. EMC Instructions
Capacity to prevent output of obstructive noise that adversely affects external
devices.
Capacity to not malfunction due to obstructive noise from external source.
Restriction of electromagnetic noise radiated
through the air
Restriction of electromagnetic noise discharged
from power supply line
Example) Regulation of withstand level of static
electricity accumulated in human body
Example) Simulation of immunity from digital
wireless telephones
Example) Regulation of withstand level of noise
from relay or live wire being inserted or
removed
Example) Regulation of withstand level of noise
flowed from power supply wires, etc.
Example) Regulation of electromagnetic noise of
50/60Hz power supply frequency
Example) Regulation of power voltage drop
withstand level
Example) Regulation of withstand level of noise
caused by lightning
Details
119
EMC Standard
EN50081-2
EN61800-3 EN55011
(Industrial (CLASS: A)
environment)
IEC61000-4-2
IEC61000-4-3
IEC61000-4-4
EN50082-2
EN61800-3
(Industrial
IEC61000-4-6
environment)
IEC61000-4-8
IEC61000-4-11
IEC61000-4-5