Emerson EV1000-2S0004G User Manual page 16

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12 Chapter 3 Installation and Wiring
shielded and may be disturbed lightly. The cables
are the main EMI source, if you connect the
cables according to the manual, the EMI can be
suppressed effectively.
In system design phase, to reduce EMI, insulating
the noise source and using noise snubber are
best choice. But the cost is considerable. If there
Hint:
1. After installing EMI filter and AC reactor, the drive can satisfy IEC 61800-3 standard.
2. The input/output EMI filter should be installed close to the drive as possible.
3. Refer to Appendix 3 for the specifications of optional parts.
Attention:
·Area Ⅰshould be used to install transformers for control power supply, control system and sensor.
·Area Ⅱ should be used for interface of signal and control cables with good immunity level.
·Area Ⅲ should be used to install noise generating devices such as input reactor, drive, brake unit and
contactor.
·Area Ⅳ should be used to install output noise filter.
·Area Ⅴ should be used to install power source and cables connecting the RFI filter.
·Area Ⅵ should be used to install the motor and motor cables.
·Areas should be isolated in space, so that electro-magnetic decoupling effect can be achieved.
Mains
electric cabinet
Area Ⅰ
Control
Equipment
（ Such as: PC ）
Area Ⅱ
Sensor （ such as ：
temperature, position,
pressure ）
Fig. 3-4 Recommended System Layout
EV1000 Series General Purpose Variable Speed Drive User Manual
are a few sensitive devices on site, just install
power line filter beside them is enough. Note that
the drive and contactor are noise source, and the
automatic devices, encoder and transducer are
sensible to them.
Divide the system into several EMC areas, refer
to Fig. 3-4.
Area Ⅴ
Input Filter
Area Ⅲ
Input reactor
Drive
Area Ⅳ
Linear
noise filter
earthing separation
board
Motor cables
detecting signal cable
manufacturing
mechanics
Mechanical
Motor
system
Area Ⅵ