![Fuji Electric frenic mini series Скачать руководство пользователя страница 228](http://html1.mh-extra.com/html/fuji-electric/frenic-mini-series/frenic-mini-series_user-manual_2341845228.webp)
A-4
Figure A.5 Electrostatic Noise
(3) Radiation noise
Noise generated in an inverter may be radiated through the air from wires (that act as antennas) at
the input and output sides of the inverter. This noise is called "radiation noise"
as shown below.
Not only wires but motor frames or control system panels containing inverters may also act as
antennas.
Figure A.6 Radiation Noise
A.3
Noise prevention
The more noise prevention is strengthened, the more effective. However, with the use of appropriate
measures, noise problems may be resolved easily. It is necessary to implement economical noise
prevention according to the noise level and the equipment conditions.
[ 1 ] Noise prevention prior to installation
Before inserting an inverter in your control panel or installing an inverter panel, you need to consider
noise prevention. Once noise problems occur, it will cost additional materials and time for solving
them.
Noise prevention prior to installation includes:
1) Separating the wiring of main circuits and control circuits
2) Putting main circuit wiring into a metal pipe (conduit pipe)
3) Using shielded wires or twist shielded wires for control circuits.
4) Implementing appropriate grounding work and grounding wiring.
These noise prevention measures can avoid most noise problems.
Содержание frenic mini series
Страница 1: ...USER S MANUAL Fuji Electric Co Ltd MEH446...
Страница 2: ...Compact Inverter User s Manual...
Страница 60: ...4 2 4 2 Drive Frequency Command Generator Figure 4 1 Block Diagram for Drive Frequency Command Generator...
Страница 62: ...4 4 4 3 Drive Command Generator Figure 4 2 Drive Command Generator...
Страница 66: ...4 8 Figure 4 3 d Terminal Command Decoder ORing with Link Commands Ignoring Link Commands...
Страница 68: ...4 10 4 5 Digital Output Selector Figure 4 4 Digital Output Signal Selector...
Страница 70: ...4 12 4 6 Analog Output FMA Selector Figure 4 5 Analog Output FMA Selector...
Страница 72: ...4 14 4 7 Drive Command Controller Figure 4 6 Drive Command Controller and Related Part of the Inverter...
Страница 74: ...4 16 4 8 PID Frequency Command Generator Figure 4 7 PID Frequency Command Generator...
Страница 81: ...Part 3 Peripheral Equipment and Options Chapter 6 SELECTING PERIPHERAL EQUIPMENT...
Страница 109: ...Part 4 Selecting Optimal Inverter Model Chapter 7 SELECTING OPTIMAL MOTOR AND INVERTER CAPACITIES...
Страница 124: ...Part 5 Specifications Chapter 8 SPECIFICATIONS Chapter 9 FUNCTION CODES...
Страница 134: ...8 3 Common Specifications 8 9 Chap 8 SPECIFICATIONS 8 3 Common Specifications...
Страница 135: ...8 10...
Страница 257: ...App H Replacement Information A 33 App FVR C11S vs FRENIC Mini...
Страница 261: ...Glossary This glossary explains the technical terms that are frequently used in this manual...