FujiFilm GYN101CAG-G09, User Manual, Page: 198 / 252

10
PERIPHERAL DEVICE
10-12
10-6) AC reactor
Connect the AC reactor in the primary circuit of the servo amplifier in the following cases.
(1) Large power supply capacity
When the power supply capacity exceeds 500kVA, the input current of the servo amplifier becomes
large at the time of power on, and there is a possibility where the rectifying diodes of the amplifier are
damaged.
(Cable length of 20m with specified cable diameter size)
(2) Imbalance in power supply voltage
The current gathers in the phase of a higher voltage if there is imbalance among source voltage phases.
Connect an AC reactor if the power supply voltage imbalance rate is 3% or higher.
Connect the AC reactor to average the input current among phases. It also functions as a guard against
power failure in the source voltage line.
(3) Suppression of harmonics
Higher harmonics current is generated because the servo amplifier is of a capacitor input type. The
AC reactor suppresses voltage distortion in the power supply system to prevent troubles from
occurring in the devices connected to the same power supply system.
An imbalance in the source voltage increases harmonics.
Connect the AC reactor in the primary circuit of the servo amplifier. A smaller rated current capacity
type generates heat, while the effect is small with a larger rated current capacity type.
Input power supply Servo amplifier type Capacity [W] AC reactor Reactance
RYB500S3-
ooo
50
RYB101S3-
ooo
100
RYB201S3-
ooo
200
ACR2-0.4A 2.92mH
RYB401S3-
ooo
400 ACR2-0.75A 1.57mH
3-phase 200V series
[with 3-phase power supply]
RYB751S3-
ooo
750 ACR2-1.5A 0.939mH
RYB500S3-
ooo
50
RYB101S3-
ooo
100
ACR2-0.4A 2.92mH
RYB201S3-
ooo
200 ACR2-0.75A 1.57mH
3-phase 200V series
[with single-phase power
supply]
RYB401S3- ooo 400 ACR2-1.5A 0.939mH
RYB500S3- ooo 6 50
RYB101S3- ooo 6 100
ACR2-0.4A 2.92mH
Single-phase 100V series
RYB201S3- ooo 6 200 ACR2-0.75A 1.57mH
(Imbalance rate of power supply voltage [%]) =
((Max. voltage [V]) - (Min. voltage [V]))
(3-phase average voltage [V])
×
100