RDCU-02C Multifunctional control board

Product parameters

Model: RDCU-02C

Brand: ABB

Size: 10cm x 10cm x 30cm

Weight: 1.2KG

Color: White Black

Working voltage: 5V

Working temperature: -10 ℃ to 50 ℃

Communication interface: RS232, RS485, CAN

Product specifications

Support for MODBUS protocol

Support hardware flow control

Using high-speed CMOS devices

Support for data caching

application area

RDCU-02C is mainly used in the field of industrial automation, such as DCS PLCs, industrial controllers, robots, etc.

RDCU-02C is mainly used in steel manufacturing, thermal power generation, hydroelectric power generation, glass manufacturing, paper mills, cement factories, petrochemicals

Chemical fiber, pharmaceutical manufacturing, rubber, plastics, ferrous metal food, machine tools, specialized equipment, transportation vehicles, mechanical equipment

Electronic communication equipment, instruments and beverages, tobacco processing, clothing, textiles, leather, wood processing, furniture, printing, etc

Model: RDCU-02C Brand: ABB Archive Function: Communication Function Product Certification: Qualified

Working voltage: 24V Internal variable: No pattern Type: Vector diagram Applicable range: Industrial type

Number of screens: 4 Imported or not: Yes Customized for processing: No

Alarm function: Product name: Module Input voltage: 24V Rated current: 5A

Special service: including postage. Remarks: one-year warranty. Operation method: remote control

Applicable motor: servo motor system memory: 8MB Display color: 99.9 color gamut

Power voltage: 220V Input method: Current Input Material code: 65218

Communication interface: HDMI interface Working temperature: 60 Material number 26854 Other functions Analog communication

Output frequency: 50HZ Rated voltage: 24V Alarm type: Light alarm

Disconnect capacity: 0.01 Vector graph support: Minimum number of packages supported: 1

Display type: IPS USB interface quantity: 2 interfaces Memory card slot: 2

Panel protection level: 3 Memory expansion capacity: 128MB User script support: supported

Speed response frequency: 1MS Working environment temperature: -40 to 100 Insulation withstand voltage test: Passed

Third party communication products: ABB controllers available for sale in: nationwide

Product Instructions

Please install RDCU-02C correctly on the device and connect the communication interface cable properly.

Please refer to the user manual for operating RDCU-02C to ensure proper use.

Product Introduction

RDCU-02C is a high-performance industrial automation communication module that uses high-speed CMOS devices, supports MODBUS protocol, and supports
hardware flow control. It is an ideal choice in the field of industrial automation.

2. Principle of frequency converter

In embedded development, the control of motors is often involved. Currently, frequency conversion control of AC motors is widely used, so let”s briefly introduce the
frequency converter by looking at the diagram, assuming that you already understand the principle of the motor.

The block diagram is as follows:
The frequency converter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit, microprocessing unit, etc.
The inverter relies on the switching of the internal IGBT to adjust the voltage and frequency of the output power supply, and provides the required power supply voltage
according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter also has many protection functions.
, such as overcurrent, overvoltage, overload protection, etc. With the continuous improvement of industrial automation, frequency converters have also been widely used.

A typical inverter system diagram is shown below. It mainly includes operation panel, VFD controller, motor and other parts.
1. Typical structure:

Mainly includes: control platform, measurement circuit, power circuit, protection circuit, etc.

There are two common types of frequency converters: voltage type and current type. Among them, the power inverter part mostly uses power
tubes such as IGBT and IGCT.

2. Typical algorithm:

Among them, the control algorithm represented by Siemens is mainly based on coordinate transformation (vector control). Friends who are
interested in the algorithm represented by ABB can search for information by themselves (direct torque control) and will not go into details here.

3. Vector control:

Many chip MCU and MPU manufacturers have provided block diagrams and algorithm libraries for variable frequency vector control. Those
who are interested can study it. For example, the following figure is a block diagram provided by Microchip

745-W2-P5-G5-HI-R-T GE Multilin Transformer protection system
745-W2-P5-G5-HI-A-L-R-E GE Multilin Transformer management relay
745-W2-P5-G5-HI-A-R-E GE Multilin Three-phase transformer protection system
745-W2-P5-G5-HI-A-E-H GE Multilin Transformer management relay
745-W2-P5-G5-HI-A GE Multilin High speed protection relay for transformer
745-W2-P5-G5-HI-A-E GE Multilin Transformer management relay
745-W2-P5-G5-HI GE Multilin High speed protection relay for transformer
745-W2-P1-G1-LO-E GE Multilin Transformer protection system
745-W2-P1-G1-HI-T-H GE Multilin Transformer protection relay
565-5-5-O-B GE Multilin feeder management relay
565-5-5-O-A GE Multilin Feeder management relay
565-5-5-A GE Multilin feeder management relay
SR489-P5-HI-A20 GE Multilin Electrical relay
489-P5-LO-A20 GE Multilin Generator management relay
489-P5-LO-A20-E GE Series 489 motor management relay
489-P5-HI-A20-T-H GE Multilin Generator management relay
489-P5-HI-A20-T GE Enhanced motor management relay
489-P5-HI-A20-E-H GE Multilin Generator management relay
489-P1-LO-A20-E GE Enhanced motor management relay
489-P5-HI-A20 GE Multilin 489 Motor management relay
489-P1-LO-A20-E GE Enhanced motor management relay
489-P1-LO-A20 GE 489 Motor management relay
850-EP5NNG5HNNANNGSPBCSENNBN GE Feeder protection system
850-EP5NNG5HNNALAGAPFBSENNBN GE Feeder protection system
850-EP5NNG5HNNAANGAPBBSENNBN GE Feeder protection system
850-EP5NNG5HNNAANGAPFCSENNBN GE Feeder protection system
SR469-P5-LO-A20-T GE Motor management relay
SR469-P5-LO-A20-E GE SR 469 Multilin relay
SR469-P5-LO-A20 GE Motor management relay with coating
SR469-P5-HI-A20-T GE SR469 Multilin relay
SR469-P5-HI-A20-E-H GE Motor management relay with coating
SR469-P5-HI-A20-E GE Multilin SR 469 Motor management relay
SR469-P5-HI-A20 GE Multilin Power motor management relay
SR469-P1-HI-A1-E-H GE Multilin Enclosure motor management relay
SR469-P1-H1-A1-E GE Multilin Series 469 relay
469-P5-LO-A20-T GE Multilin 469 Motor management relay
469-P5-LO-A20-E GE Multilin Conformal coated motor management relay
469-P5-LO-A20 GE Multilin 469 Motor management relay
469-P5-HI-A20-T GE Multilin Conformal coated motor management relay
469-P5-HI-A20-H GE 469 Motor management relay
469-P5-HI-A20-E-H GE Multilin Conformal coated motor management relay
469-P5-HI-A20-E GE Multilin relay
SR469-P1-HI-A1-E-H GE Motor management relay with coating
469-P5-HI-A1-E GE 469 Motor management relay
SR469-P1-H1-A1-E GE 469 Motor management relay
139-V-TC-FLC GE Model 139 General Electric relay
139-V-FLC GE Three-phase AC motor protection
139-NSF-V-TC GE Multilin Three-phase motor protection GE relay
139-DO-NFS-FLC GE Three-phase motor protection relay
139-DO-FLC GE Multilin motor protection relay
139-120V GE Electrical protection GE relay
139-H-FLC GE Multilin Relay for protection of three-phase motor
169PLUS-120N-125VDC GE Multilin 169 Plus motor management relay