Preventing Induced Noise; Reducing Radiated/Radio Frequency Noise - YASKAWA V1000 Series Installation & Start-Up Manual

7.4 Installing Peripheral Devices

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.
Figure 7.9
A
A – Power supply
B – Drive
C – Shielded motor cable
D – Motor

Reducing Radiated/Radio Frequency Noise

The drive, input lines, and output lines generate radio frequency noise. Use noise filters on
input and output sides and install the drive in a metal enclosure panel to reduce radio
frequency noise.
Note: The cable running between the drive and motor should be as short as possible.
Figure 7.10
B
MCCB
A – Metal enclosure
B – Power supply
C – Noise filter
D – Drive
276
MCCB
R/L1
S/L2
T/L3
Figure 7.9 Preventing Induced Noise
C
R/L1
S/L2
T/L3
Figure 7.10 Reducing Radio Frequency Noise
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
B
C
U/T1
V/T2
W/T3
E
G
E – Separate at least 30 cm
F – Controller
G – Signal line
H –
A
D E
U/T1
V/T2
W/T3
E – Noise filter
F – Shielded motor cable
G – Motor
H –
D
F
F
G