B C
D
A
R/L1
1
2
3
4
E
MCCB
MCCB
S/L2
A – Power supply
B – Input-side noise filter
C – Drive
D – Other control device
Figure 8.5 Input-Side Noise Filter (Single-Phase 200 V)
C
D
A
B
R/L1
U
V
W
R
S
T
E
MCCB
MCCB
S/L2
T/L3
A – Power supply
B – Input-side noise filter
C – Drive
D – Other control device
Figure 8.6 Input-Side Noise Filter (Three-Phase 200/400 V)
Refer to EMC Filter Installation on page 383 for details about EMC filter selection and installation in order to make the
drive compliant with European standards EN61800-3 and the EMC guidelines.
n
Output-Side Noise Filter
A noise filter on the output side of the drive reduces inductive noise and radiated noise. Figure 8.7 illustrates an example
of output-side noise filter wiring.
NOTICE: Do not connect phase-advancing capacitors or LC/RC noise filters to the output circuits. Improper application of noise filters
could result in damage to the drive.
C
B
A
D
R/L1
MCCB
S/L2
T/L3
U/T1
V/T2
W/T3
1
2
3
4
5
6
A – Power supply
B – Drive
C – Output-side noise filter
D – Motor
Figure 8.7 Output-Side Noise Filter
• Radiated Noise: Electromagnetic waves radiated from the drive and cables create noise throughout the radio bandwidth
that can affect devices.
• Induced Noise: Noise generated by electromagnetic induction can affect the signal line and may cause the controller to
malfunction.
Preventing Induced Noise
Use a noise filter on the output side or use shielded cables. Lay the cables at least 30 cm away from the signal line to
prevent induced noise.
8.4
Installing Peripheral Devices
280
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
7/16/2008-13:23
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