Ac Reactor; Ac Reactor Application; Suppression Of Higher Harmonics; Data Of External Braking Resistor - Fuji Electric Faldic-a RYS-R Series User Manual

10.5 AC reactor (reactor for impedance matching)

(1) AC reactor application

Provide and connect an AC reactor in any of the following cases.
(a) Power supply capacity is large
When the power supply capacity exceeds 500 [kVA] (*), the input current of the amplifier becomes large at the time of power on, and there is
a possibility where the rectifying diodes of the amplifier are damaged.
Note : (*) Cable length of 20 [m] with specified cable diameter size.
(b) Power supply voltage is unbalanced
Connect an AC reactor if the power supply voltage unbalance rate is 3% or higher.
Unbalance rate of power supply voltage [%] =
(c) Suppression of higher harmonics
Higher harmonics current is generated because an amplifier is of capacitor input type.
AC reactor suppresses voltage distortion in the power supply system.
(2) Connection
Connect an AC reactor to the primary (power supply) side of the amplifier.
Input voltage class
Amplifier output
Amplifier type RYS□□□S3-

AC reactor

type ACR2- 0.4A
reactance [mH] 2.92
10.6 External braking resistor : External dimension : Refer to 10.8 (3)
A braking resistor is provided (built-in) with the amplifier for 0.2 [kW] over.
However, if load variation is wide, elevation (hoisting) load, or higher frequent operation, the following external braking resistor should be
installed. In such a case, built-in resistor should be disconnected.

(1) Data of external braking resistor

Input voltage class
Amplifier output
Amplifier type RYS□□□S3-
Resistor type
(**)
Resistance
Built-in resistor (**)
Note : (**) Cont. : Continuous operation duty at 25℃, allowable
(2) Data of NTC thermistor embedded in the external braking resistor
Resistor type Open circuited the thermistor at
the following temperature [℃]
WSR- 401 135 ± 5
751
152 150 ± 10
DB 11-2
22-2
Max. voltage [V]−Min. voltage [V]
3-phase average voltage [V]
[V] 100 200
[kW] 0.05 to 0.2 0.03 to 0.2 0.4
□□□6 □□□
500 to 201 300 to 201 401
0.4A
[V] 100
[kW] 0.05, 0.1 0.2
□□□6
500, 101 201
WSR-401
[W] 17
[Ω] 68
[W] Not 12
applicable
[Ω] 68
× 100
0.75 1, 1.5
751 102, 152
0.75A 1.5A 2.2A
1.57 0.939 0.679
200
0.03 to 0.2 0.4 0.75
□□□
300 to 201 401 751
WSR-751
25
15
Not 12
applicable
68 33
Withstand AC voltage tested
for one minute [kV]
1.5
2.5
10-6
2 3 4
202 302 402
3.7A 5.5A 7.5A
0.406 0.279 0.207
1, 1.5 2, 3 4, 5
102, 152 202, 302 402, 502
WSR-152 DB11-2 DB22-2
75 115
10 5.8
20 30 60
18 9 5.5
Contact capacity
30 [V] DC, 0.1 [A]
120 [V] AC/30 [V] DC, 0.1 [A]
MHT260a (Engl.)
5
502
11A
0.145