Delta Electronics VFD037CH23A-21 — основные терминалы цепи: схема и подключения [53/638]

Превью страниц Страница 53 / 638
Delta Electronics VFD037CH23A-21 Руководство по эксплуатации онлайн [53/638] 460294
Chapter 5 Main Circuit Terminals
5-2
Main Circuit Diagram 3
R
/L11
S
/L12
T
/L13
R
/L21
S
/L22
T
/L23
D
C+
D
C-
R
S
T
Power
Power
Adaptor
Motor Drive
Terminals Descriptions
R/L1, S/L2, T/L3 AC line input terminals 3-phase
U/T1, V/T2, W/T3 AC drive output terminals for connecting 3-phase induction motor
+1, +2
Applicable to frame A~C
Connections for DC reactor to improve the power factor. It needs to remove the
jumper for installation.
+1/DC+, -/DC-
Connections for brake unit (VFDB series)
(for 230V models: 22kW, built -in brake unit)
(for 460V models: 30kW, built -in brake unit)
Common DC Bus
B1, B2 Connections for brake resistor (optional)
Earth connection, please comply with local regulations.
Main power terminals
Do not connect 3-phase model to one-phase power. R/L1, S/L2 and T/L3
has no phase-sequence requirement, it can be used upon random
selection.
It is recommend adding a magnetic contactor (MC) to the power input
wiring to cut off power quickly and reduce malfunction when activating
the protection function of the AC motor drive. Both ends of the MC
should have an R-C surge absorber.
Fasten the screws in the main circuit terminal to prevent sparks condition
made by the loose screws due to vibration.
Please use voltage and current within the specification.
When using a general GFCI (Ground Fault Circuit Interrupter), select a
current sensor with sensitivity of 200mA or above and not less than

Содержание

1610

Изучите основные терминалы цепи и их подключения для трехфазных двигателей. Узнайте о рекомендациях по безопасности и улучшению коэффициента мощности.