SHENZHEN ENCOM ELECTRIC TECHNOLOGIES CO. enc eds800-2s0002n User Manual page 26

3> electromagnetic induction disturbance；
conduction disturbance
Leak current
Power supply wire
grounding loop
high-order harmonic
current disturbance
disturbance
①
Road
Emission disturbance of
Inverter main loop switch
And switching power
(2) noise spread road
Power supply
sensor
Fig.3-15 noise disturbance spread road sketch
(3) basic countermeasure for suppressing disturbance
Table 3-7 disturbance suppressing countermeasure table
Noise
spread
road
EDS800 series Service Manual
space emission disturbance
②
Road
Emission
disturbance from
motor wire U, V, W
③
Road
Fig.3-14 type of noise disturbance
⑧
②
⑤
inverter
⑦
motor
⑤
①
Countermeasure of weakening effect
disturbance
electromagnetic induction disturbance
Input wire
induction
Road
Emission disturbance
from power supply
wire R, S, T
④
Road
Road
⑥
②
③
Wireless set
④
21
Inverter power
parts induction
⑥
⑦
Road
⑤
TV
meter
Output wire
induction
⑧
Road