External Braking Resistor Connection; Dc Reactor; Dc Reactor Application - Fuji Electric Faldic-a RYS-R Series User Manual

(3) External braking resistor connection

ＤＢ ＤＢ ＤＢ ＤＢ
Ｐ＋ Ｐ＋
Ｐ＋ Ｐ＋
Ｐ１ Ｐ１
Ｐ１ Ｐ１
Ｌ１ Ｌ１ Ｌ１ Ｌ１
Ｌ２ Ｌ２ Ｌ２ Ｌ２
Ｌ３ Ｌ３ Ｌ３ Ｌ３
Ｎ Ｎ Ｎ Ｎ
Ｌ１Ｃ Ｌ１Ｃ Ｌ１Ｃ Ｌ１Ｃ
(5)
(6)
External braking resistor

10.7 DC reactor

(1) DC reactor application

Provide and connect an DC 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 DC 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 in the amplifier.
DC reactor suppresses voltage distortion in the power supply system.
(2) Connection
Connect an DC reactor to the primary (power supply) side of the amplifier.
(1)
(2)
Ｌ２Ｃ Ｌ２Ｃ Ｌ２Ｃ Ｌ２Ｃ
Amplifier
(1) Resistor
(2) Power supply for control circuit
(3) For control input terminal
(4) Battery
(5) 1.25 [mm
(6) 0.5 [mm
Max. voltage [V]−Min. voltage [V]
3-phase average voltage [V]
(3)
(4)
2
] cables. Cable length should be within 10 [m]
2
] cables for NTC thermistor. See 6.3 (13) for NTC thermistor
× 100
10-7
Ｍ Ｍ Ｍ Ｍ
ＰＧ ＰＧ
ＰＧ ＰＧ
Motor
MHT260a (Engl.)