8.5 Installing Peripheral Devices
Peripheral Devices &
Options
8
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual 343
■ Connecting an AC Reactor
Figure 8.12
Figure 8.12 Connecting an AC Reactor
■ Connecting a DC Reactor
A DC reactor can be installed to drive models CIMR-E2A0004 to 2A0081 and 4A0002 to 4A0044. When installing a
DC reactor, ensure the jumper between terminals +1 and +2 (terminals are jumpered for shipment) is removed. The
jumper must be installed if no DC reactor is used. Refer to Figure 8.13 for an example of DC reactor wiring.
Figure 8.13
Figure 8.13 Connecting a DC Reactor
◆ Connecting a Surge Absorber
A surge absorber suppresses surge voltage generated from switching an inductive load near the drive. Inductive loads
include magnetic contactors, relays, valves, solenoids, and brakes. Always use a surge absorber or diode when operating
with an inductive load.
Note: Never connect a surge absorber to the drive output.
◆ Connecting a Noise Filter
■ Input-Side Noise Filter
Drive outputs generate noise as a result of high-speed switching. This noise flows from inside the drive back to 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 C – AC reactor
B – MCCB D – Drive
A – Power supply C – Drive
B – MCCB D – DC reactor
BA
CD
R/L1 U
V
W
X
Y
Z
S/L2
T/L3
A
C
D
R/L1
B
S/L2
T/L3
1+2+
SIEP_C710616_35.book 343 ページ ２０１５年１１月３０日 月曜日 午後２時２分
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