YASKAWA E1000 Technical Manual page 344

8.5 Installing Peripheral Devices
Figure 8.14
■
Output-Side Noise Filter
A noise filter on the output side of the drive reduces inductive noise and radiated noise.
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.
Figure 8.15
• Radiated Noise: Electromagnetic waves radiated from the drive and cables create noise throughout the radio
bandwidth that can affect surrounding 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.
Figure 8.16
344
A
A – Power supply
B – Input-side noise filter
(model LNFD-)
Figure 8.14 Input-Side Noise Filter (Three-Phase 200/400 V)
A
MCCB
A – Power supply
B – Drive
Figure 8.15 Output-Side Noise Filter
A MCCB
R/L1
S/L2
T/L3
A – Power supply
B – Drive
C – Shielded motor cable
D – Motor
Figure 8.16 Preventing Induced Noise
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 4
S/L2 V/T2
2 5
T/L3 W/T3
3 6
C – Output-side noise filter
D – Motor
B
C
U/T1
V/T2
W/T3
E
G
E – Separate at least 30 cm
F – Controller
G – Signal line
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
C
Y E C _
T M o n
ly
Figure 8.15 illustrates an
D
Y E C _
M
T M o n
ly
D
M
Y E C _
T M o n
ly
F