bnp-b2365(eng)b.pdf - 第378页

Appendix 3. EMC Installation Guidelines A3 - 1 Appendix 3-1 Introduc tion ..................................................................................................... ................. A3-2 Appendix 3-2 EMC inst…

Appendix 2. Compliance to EC Directives

A2 - 5

(7) Peripheral devices

[1] Use EN/IEC Standards compliant parts for the no-fuse breaker and contactor.

(8) Miscellaneous

[1] Refer to "MDS-C1 INSTRUCTION MANUAL" for methods on complying with the EMC

Directives.

[2] Ground the facility according to each country's requirements.

[3] The control circuit connector ({) is safely separated from the main circuit (

[4] Inspect the appearance before installing the unit. Carry out a performance inspection of the

final unit, and save the inspection records.

MC1

Mitsubishi CNC

SV1, 2

(CSH21)

External emergency

stop input

Contactor No-fuse

breaker

Ground

: Main circuit

: Control circuit

CN1A

CN23

CN4

CN9

CN20

L11 TE3

TE1

CN9

CN1B

L+

L-

CN2L

CN2M

TE1

Motor end

detector

Motor end

detector

MDS-A-BT-

MDS-C1-V2-

MDS-C1-CV-

Motor

CN4

Machine end

detector

Machine end

detector

TE3

TE2

L+

L-

L11

L21

TE2

C reactor

Ground

L21

CN3M

CN3L

External brake

output contact

Appendix 3. EMC Installation Guidelines

A3 - 1

Appendix 3-1 Introduction ......................................................................................................................A3-2

Appendix 3-2 EMC instructions ..............................................................................................................A3-2

Appendix 3-3 EMC measures ................................................................................................................A3-3

Appendix 3-4 Measures for panel structure ...........................................................................................A3-3

Appendix 3-4-1 Measures for control panel unit.................................................................................A3-3

Appendix 3-4-2 Measures for door .....................................................................................................A3-4

Appendix 3-4-3 Measures for operation board panel .........................................................................A3-4

Appendix 3-4-4 Shielding of the power supply input section..............................................................A3-4

Appendix 3-5 Measures for various cables ............................................................................................A3-5

Appendix 3-5-1 Measures for wiring in panel .....................................................................................A3-5

Appendix 3-5-2 Measures for shield treatment...................................................................................A3-5

Appendix 3-5-3 Servo/spindle motor power cable..............................................................................A3-6

Appendix 3-5-4 Servo motor feedback cable .....................................................................................A3-7

Appendix 3-5-5 Spindle motor feedback cable...................................................................................A3-7

Appendix 3-6 EMC countermeasure parts .........................................................................................A3-8

Appendix 3-6-1 Shield clamp fitting.................................................................................................A3-8

Appendix 3-6-2 Ferrite core ............................................................................................................A3-9

Appendix 3-6-3 Power line filter ....................................................................................................A3-10

Appendix 3-6-4 Surge protector ....................................................................................................A3-15

Appendix 3. EMC Installation Guidelines

A3 - 2

Appendix 3-1 Introduction

EMC Instructions became mandatory as of January 1, 1996. The subject products must have a CE mark

attached indicating that the product complies with the Instructions.

As the NC unit is a component designed to control machine tools, it is believed to be out of the direct

EMC Instruction subject. However, we would like to introduce the following measure plans to backup

EMC Instruction compliance of the machine tool as the NC unit is a major component of the machine

tools.

[1] Methods for installation in control/operation panel

[2] Methods of wiring cable outside of panel

[3] Introduction of countermeasure parts

Mitsubishi is carrying out tests to confirm the compliance to the EMC Standards under the environment

described in this manual. However, the level of the noise will differ according to the equipment type and

layout, control panel structure and wiring lead-in, etc. Thus, we ask that the final noise level be

confirmed by the machine manufacturer.

These contents are the same as the EMC INSTALLATION GUIDELINES (BNP-B8582-45).

For measures for CNC, refer to "EMC INSTALLATION GUIDELINES" (BNP-B2230).

Appendix 3-2 EMC instructions

The EMC Instructions regulate mainly the following two withstand levels.

Emission ..... Capacity to prevent output of obstructive noise that adversely affects external

sources.

Immunity ..... Capacity not to malfunction due to obstructive noise from external sources.

The details of each level are classified as Table 1. It is assumed that the Standards and test details

required for a machine are about the same as these.

Table 1

Class Name Details

Generic

Standard

Standards for

determining test

and measurement

Radiated noise Electromagnetic noise radiated through the air

Emission

Conductive noise Electromagnetic noise discharged from power line

EN61000-6-4

EN61800-3

(Industrial

environment

)

EN55011

Static electricity

electrical discharge

Example) Withstand level of discharge of

electricity charged in a human body.

IEC61000-4-2

Radiated magnetic

field

Example) Simulation of immunity from digital

wireless transmitters

IEC61000-4-3

Burst immunity

Example) Withstand level of noise from relays or

connecting/disconnecting live wires

IEC61000-4-4

Conductive

immunity

Example) Withstand level of noise entering

through power line, etc.

IEC61000-4-6

Power supply

frequency field

Example) 50/60Hz power frequency noise

IEC61000-4-8

Power dip

(fluctuation)

Example) Power voltage drop withstand level

IEC61000-4-11

Immunity

Surge

Example) Withstand level of noise caused by

lightning

EN61000-6-2

EN61800-3

(Industrial

environment)

IEC61000-4-5