1 Product Overview

SC-GP- MDC It is a box-type transformer intelligent measurement and control device /terminal launched by Shanghai Shucai IoT Technology . It is suitable for photovoltaic or wind power booster stations, providing complete protection, measurement, control, adjustment, information remote transmission and other functions for new energy power generation and grid connection. It realizes the "unmanned and less-staffed" operation and management mode of wind power or photovoltaic projects.

2 Service Concept

Our company solemnly promises:

You buy not only the product, but also the meticulous and thoughtful technical support service ! ! ! ( =^_^= )

This product only needs ordinary workers to connect the power and install it on site! No debugging is required!

We provide free remote guidance, remote configuration and debugging services, and send data to the user's designated cloud platform.

Free IoT solution consulting services!

3 Function Configuration

4 Electrical Characteristics

4.1 Communication characteristics

l RS485 serial port baud rate 1200bps～9600bps

l Optical port ST interface, single-mode dual-core ≥ 20km

l RJ45 network port 10M/100M adaptive

5 Structural characteristics

l The device adopts a rear plug-in structure with a closed shell; the chassis adopts an embedded installation method with wiring at the back of the box.

l Device dimensions: 223×262×240mm (height×width×depth);

l Installation opening size: 223×227mm (height×width);

l Installation fixing hole spacing: 140×246mm (height×width), installation hole: 4×Φ8mm.

The device is designed with modular design concept. Different configuration requirements are combined and configured by various functional components as needed, realizing the standardization of functional modules. The device consists of analog input AI plug-in, main control MAIN plug-in, basic remote signal DI plug-in, power supply/output POW plug-in, communication TX plug-in and human-machine interface MMI component on the panel.

From right to left on the back of the chassis (as shown in Figure 3.2-1), there are: analog input AI plug-in (A), main control MAIN plug-in (B), basic remote signal DI plug-in (C), extended remote signal DI plug-in (D), power supply/output POW plug-in (E), communication TX plug-in (F). The device is standardly configured with (A), (B), (C), (E), (F), and these 5 plug-ins can meet the needs of telemetry and remote signal acquisition, output control, communication management, and ring network. If the user needs to increase the acquisition of switching signals, it can be expanded through the extended remote signal DI plug-in (D).

Figure 3.2-1

5.1.1  AI Plug-in (A)

The analog input AI plug-in is equipped with 6-channel current and 6-channel voltage acquisition as standard, which can collect analog signals such as three-phase AC current and three-phase AC voltage. After the AC current and AC voltage are isolated and converted into small signals through the internal mutual inductor, they are sent to the main control MAIN plug-in for signal conditioning and analog signal acquisition and calculation.

5.1.2 (B)

The main control MAIN plug-in is the core plug-in of this device, which includes analog signal conditioning, acquisition, AD conversion, protection judgment, switch quantity acquisition, parameter and historical record storage, real-time hard clock, etc.

The main control MAIN plug-in and the communication TX plug-in inside the device are directly interconnected through the internal serial port to exchange data and execute commands.

5.1.3  Remote Signal DI Plug-in ( C )

The device is equipped with a basic remote signal plug-in (C) as standard. When the basic remote signal plug-in cannot meet the configuration requirements, the input quantity can be expanded through the extended remote signal plug-in (D). The hardware of the basic remote signal plug-in and the extended remote signal plug-in are the same, and it is necessary to select through the JP1 jumper on the remote signal plug-in. If the 1-2 pins of the JP1 jumper are short-circuited, it is the basic remote signal plug-in (C); if the 2-3 pins of the JP1 jumper are short-circuited, it is the extended remote signal plug-in (D).

5.1.4 ( E )

The power supply/output plug-in adopts a wide input range AC/DC dual-purpose switching power supply, input AC/DC85-265V, output DC5V, for use in the device digital circuit and analog circuit.

The output part provides 8-way output open contacts to realize outputs such as switch remote tripping/remote closing control, protection tripping control, etc.

The power supply/output plug-in can be equipped with a 1-way operation box as an option, which needs to be specified when ordering.

5.1.5 Communication TX plug-in ( F )

The communication TX plug-in is configured with the communication manager function and the ring network switch function.

The communication management machine is equipped with RS485 serial port and RJ45 network port, which can realize the reception and forwarding of various protocols of the power system.

The communication TX plug-in also has a built-in ring network switch, which can realize the fiber optic self-healing ring network. The ring network switch is equipped with 2 electrical ports and 2 optical ports, supporting multiple devices to be networked through the network.

Special note: In order to simplify the external network cable when the communication management machine is connected to the ring network switch, the communication management machine and the ring network switch are directly connected by a network interface inside the device. When the communication management machine does not need to be directly connected to the ring network switch, all four jump blocks at the JP1 position on the communication TX plug-in need to be opened to avoid device IP address conflicts and affect network communication.

The default IP address of the communication TX plug-in network port is as follows:

（1）The default IP address of NET1 is 192.168.1.166.

（2）The default IP address of NET2 is 192.168.3.166.

（3）The default IP address of the network port directly connected to the internal management machine and switch of the device is 192.168.2.166.

5.1.6 Interface Components

The human-machine interface component provides an OLED screen with a wide operating temperature range and is equipped with 9 operation buttons to achieve human-machine interactive operations. The device panel is equipped with 5 software indicator lights and 26 hardware drive indicator lights.

5.1.7  

5.1.8 Hardware indicator light

5.1.9 Software indicator light

5.1.10 Operation buttons

6 Work Environment

l A place without explosion hazard, conductive dust or corrosiveness.

l Ambient temperature: -40℃~+75℃

l Ambient humidity: When the maximum temperature is 75℃, the relative humidity does not exceed 50%; when the ambient temperature is 20℃, the maximum ambient humidity can reach 90%

l Atmospheric pressure: 80kPa~110kPa

l Protection level: IP50

7 Features

(1) The device adopts a wide operating temperature device design, a wide temperature range OLED display, and a strong interference design to adapt to harsh on-site environments.

(2) The integrated circuits of the device are all made of industrial-grade components to ensure the high stability and reliability of the device.

(3) It adopts a 32-bit high-performance embedded microcomputer processor, equipped with large-capacity RAM and FLASH, with strong data calculation, logic processing and information storage capabilities, fast operation speed and high reliability.

(4) Complete historical event records, fault time section data storage, fault recording file storage, and power-off self-retention, which is convenient for accident analysis.

(5) The system is designed with RS485 serial communication, RJ45 Ethernet communication and optical fiber communication, which can be connected to other device protocols on site to realize data forwarding.

8 

The device uses a wide temperature OLED screen, which allows users to easily browse data information, modify set parameters, conduct transmission experiments, etc. The device also provides detailed fault event records and fault recording reports to help users handle power grid accidents in a timely and accurate manner.

8.1 Liquid crystal display structure

Note: The factory default password of the device is "1000". The factory setting is for factory debugging and requires a super password.

8.2 

of the device is a multi-level structure menu. You can select it by using the arrow keys. The background color indicates that the item is selected. After selecting, press the "Confirm" key to enter the next level menu. 

8.3  Parameter modification process

In the main menu interface, you need to enter any menu such as parameter setting, fixed value management, debugging mode, and factory setting. Password verification is required before setting. If the password is incorrect, you cannot set it. The parameter modification process is shown in the figure below:

Take Main Menu->Parameter Setting->Ratio Wiring as an example, use the up and down keys to select the item to be modified, as shown in Figure 4.3-1. After selecting the item to be modified, press the "Confirm" key to enter the parameter editing state, and reverse the numbers with background color to edit and modify, as shown in Figure 4.3-2. Use the up and down keys to modify the size of the digital value, and the left and right keys to select the digit to be modified. After the modification is completed, press the "Confirm" key to temporarily save the modification.

Figure 4.3-1 Figure 4.3-2

Repeat the above operation until the parameter items that need to be modified are modified, press the "Return" key, if the parameters are modified, enter the Save or Not interface, as shown in Figure 4.3-3. Follow the prompts, press the "Confirm" key to save, and the prompt "Save Successfully" will be displayed if the save is successful, as shown in Figure 4.3-4.

Figure 4.3-3 Figure 4.3-4

8.4 

In the data display and report display interface, the dynamic interface of fault information can be automatically popped up. Press the "Back" key in the dynamic pop-up interface to exit the dynamic interface. The historical records can be viewed in the report display interface.

8.5  

To extend the life of the LCD screen, when no key is pressed for more than 5 minutes, the screen will enter the screen saver state and the LCD screen will display a black screen. In the screen saver state, pressing any key will light up the LCD screen. 

9 appendix

9.1 Electromagnetic compatibility standards

9.2 Mechanical performance standards

9.3 Implementation Standards