Connecting A Dc Reactor; Connecting A Surge Protector; Connecting A Noise Filter; Input-Side Noise Filter - YASKAWA V1000 Series Installation & Start-Up Manual

Connecting a DC Reactor

■
Ensure the jumper between terminals +1 and +2 (terminals are jumpered for shipment) is
removed when connecting a DC reactor. The jumper must be installed if no DC reactor is
used. Refer to Figure 7.5
Figure 7.5
A – Power supply
B – MCCB
◆

Connecting a Surge Protector

A surge protector 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 protector or diode when operating with an inductive load.
Note: Never connect a surge protector 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 toward the power supply, possible 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.
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
for an example of DC reactor wiring.
A B
Figure 7.5 Connecting a DC Reactor
7.4 Installing Peripheral Devices
C
R/L1
S/L2
T/L3
+1 +2
D
C – Drive
D – DC reactor
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