Specifications

JiaXing Jarol Scientific Instrument Co.,Ltd － JR 6 000 series product s

4.4.2.2 Output voltage is high frequency PMW wave, which can increase the temperature rise and

shorten the life of motor. And the leakage current will also increase, which can lead to the leakage

protection device malfunction and generate strong electromagnetic interference to influence the reliability

of other electric devices.

4.4.2.3 As an electromagnetic receiver, too strong external interference will cause malfunction and

damage . T he inverter can not work normally.

4.4.2.4 In the system, EMS and EMI of inverter coexist. Decrease the EMI of inverter can increase

its EMS ability.

4.4.3

4.4.3 EMC

EMC

EMC Installation

Installation

Installation Guideline

Guideline

In order to ensure all electric devices in the same system to work smoothly, this section, based on

EMC features of inverter, introduces EMC installation process in several aspects of application (noise

control, site wiring, grounding, leakage current and power supply filter). The good effective of EMC will

depend on the good effective of all of these five aspects.

4.4.3.1

4.4.3.1 Noise

Noise

Noise control

control

All the connections to the control terminals must use shielded wire. And the shield layer of the wire

must ground near the wire entrance of inverter. The ground mode is 360 degree annular connection

formed by cable clips. It is strictly prohibitive to connect the twisted shielding layer to the ground of

inverter, which greatly decreases or loses the shielding effect.

Connect inverter and motor with the shielded wire or the separated cable tray. One side of shield layer of

shielded wire or metal cover of separated cable tray should connect to ground, and the other side should

connect to the motor cover. Installing an EMC filter can reduce the electromagnetic noise greatly.

4.4.3.2

4.4.3.2 Site

Site

Site W

W iring

iring