Connecting A Noise Filter - YASKAWA V1000 Technical Manual

8.4 Installing Peripheral Devices
u

Connecting a Noise Filter

n
Input-Side Noise Filter
Drive outputs generate noise as a result of high-speed switching. This noise flows from inside the drive back toward the
power supply, possibly affecting other equipment. Installing a noise filter to the input side of the drive can reduce the
amount of noise flowing back into the power supply. This also prevents noise from entering the drive from the power
supply.
• Use a noise filter specifically designed for AC drives.
• Install the noise filter as close as possible to the drive.
A – Power supply
B – Input-side noise filter (Model:
A – Power supply
B – Input-side noise filter (Model:
Refer to EMC Filter Installation on page 436
drive compliant with European standards IEC/EN 61800-3 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.
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.
A – Power supply
B – Drive
310
A
LNFB-oo)
Figure 8.5 Input-Side Noise Filter (Single-Phase 200 V)
A
LNFD-oo)
Figure 8.6 Input-Side Noise Filter (Three-Phase 200/400 V)
for details about EMC filter selection and installation in order to make the
A
MCCB
Figure 8.7 Output-Side Noise Filter
B
MCCB
R/L1
1 3
S/L2
2 4
E
MCCB
D
C – Drive
D – Other control device
B
MCCB
R/L1
R U
S/L2
S V
T/L3
T W
E
MCCB
D
C – Drive
D – Other control device
B C
R/L1 U/T1
1
S/L2 V/T2
2
T/L3 W/T3
3
C – Output-side noise filter
D – Motor
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
C
C
Figure 8.7 illustrates an example
4
D
5
6