Guizhou Yuanmiao Automation Equipment Co., Ltd.: 1Yr

Anshun, Guizhou, China; Main products: ABB Triconex Foxboro LAM, Bentley Motorola Schneider, Kollmorgen HIMA ALSTOM, Reliance GE HONEYWELL NI、ICS

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Home > Products > Other Brands > DEIF SCM4.1 Printed Circuit Board

DEIF SCM4.1 Printed Circuit Board

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Product Details

Material	Other, Global universal model	Condition	Other, Global universal model
Task	Other, Global universal model	Mathematical Model	Other, Global universal model
Signal	Other, Global universal model	Customized	Non-Customized
Structure	Other, Global universal model

Product Description

DEIF SCM4.1

Functional Features

Customized Design: Typically customized according to the specific models and functions of DEIF control systems to meet different application requirements.
High Reliability: Adopts industrial-grade materials and processes, with excellent electrical performance and mechanical strength, enabling stable operation in harsh environments.
Modular Design: Facilitates installation and maintenance, demonstrates good compatibility with other DEIF modules, and can be seamlessly integrated into DEIF control systems.
Signal Processing Functions: Provides physical support for electronic components, realizes functions such as circuit connection, signal transmission, and power distribution, and can perform simple signal processing tasks.

Technical Parameters

Protection Class: IP21.
Ambient Temperature: -60°C.
Program Capacity: 1.22bit.
Control Mode: Pulse Width Modulation (PWM) control mode.
Communication Interfaces: Dual RS-232 ports.
Current Consumption: 1.22mA.
I/O Channels: 8 input channels, 2 output channels.
PCB Layers: Multi-layer PCB to meet complex circuit connection requirements.
PCB Material: Industrial-grade materials such as FR-4.
Surface Treatment: Hot Air Solder Leveling (HASL), electroless nickel immersion gold, etc.

Working Principle

The core function of SCM4.1 is to ensure the stable operation of generators under various working conditions and quickly respond to protect equipment in case of faults through a closed-loop link of signal acquisition → logical judgment → execution control. Its core logic can be broken down into:

Data Acquisition Layer: Real-time acquisition of key parameters of the generator, such as voltage, current, frequency, and temperature.
Intelligent Decision Layer: Compares the collected data with preset thresholds to determine the system status.
Execution Control Layer: Triggers corresponding actions (such as excitation adjustment and tripping protection) based on decision results.

Working Process1. Signal Acquisition and Preprocessing

Sensor Connection: Connects to various sensors through 8 input channels, including:

Potential Transformer (PT): Monitors the generator output voltage (e.g., 400V/100V ratio).
Current Transformer (CT): Monitors the load current (e.g., 500A/5A ratio).
Temperature Sensors: Monitors winding temperature, bearing temperature, etc.
Speed Sensors: Detects the generator speed through magnetoelectric or Hall sensors.

Signal Conditioning:

Converts analog signals to digital signals (ADC sampling).
Filtering: Eliminates high-frequency noise interference.
Linearization Calibration: Compensates for sensor nonlinear errors.

2. Logical Operation and Decision-Making

Parameter Comparison:

Compares real-time collected voltage, current, frequency and other parameters with preset thresholds (e.g., voltage fluctuation range of ±5%).
Calculates derived parameters such as power factor, active/reactive power.

Fault Judgment:

Overvoltage/Undervoltage: Triggers an alarm when the voltage exceeds the threshold (e.g., >420V or <380V).
Overcurrent/Short Circuit: Triggers protection when the current exceeds the set value (e.g., 120% of the rated current).
Frequency Deviation: Adjusts the speed governor when the frequency fluctuation exceeds ±0.5Hz.
Abnormal Temperature: Starts cooling or stops the machine when the winding temperature >120°C.

Control Algorithms:

PID Control: Precisely adjusts the excitation current through a proportional-integral-derivative algorithm to maintain voltage stability.
Fuzzy Logic: Dynamically optimizes the response speed during sudden load changes.

3. Execution and Output Control

2 Output Channels:

Relay Output: Controls the circuit breaker switching (typically rated at 250VAC/5A).
Analog Output: Adjusts the excitation current of the AVR (Automatic Voltage Regulator).

Typical Actions:

Overvoltage/Overcurrent: Immediately cuts off the circuit breaker (action time <100ms).
Underfrequency: Increases the diesel engine throttle to raise the speed.
Overspeed: Triggers emergency shutdown and locks the system.
Normal Condition: Fine-tunes the excitation current according to load changes to maintain voltage stability.
Fault Condition:

4. Communication and Data Interaction

Dual RS-232 Ports:

Modbus RTU Protocol: Communicates with the host computer or PLC to transmit real-time data (e.g., voltage, current) and receive control commands.
Local Configuration: Sets parameters through DEIF proprietary software (such as DEIF Toolbox).

Data Recording:

Stores the latest 100 fault records (including timestamps, fault types, and parameter values).
Supports historical data export for analysis.

Company Profile

Guizhou Yuanmiao Automation Equipment Co., Ltd.

Main products: Covering globally renowned brands: Bently Nevada, Triconex, Woodward, Foxboro, Westinghouse, Reliance, Schneider Modicon, ABB, AB (Allen-Bradley), Motorola, GE Fanuc, Yaskawa, Bosch Rexroth Rexroth, ACSO, YOKOGAWA, Rexroth, NI, ICS Triplex, Kollmorgen, Mitsubishi, MOOG, Emerson, B&R B&r, SST, ALSTOM, KUKA EPRO, LAM HIMA dark Horse, HONEYWELL, prosoft, AMAT, SIEMENS, etc. The product categories include: DCS system accessories, robot system spare parts, large servo system spare parts, etc., which are widely used in power, chemical, metallurgy, intelligent manufacturing and other fields.

Contact Us

Guizhou Yuanmiao Automation Equipment Co., Ltd.: Contact nameyezi
Chat Now; AddressXixiu District, Anshun, Guizhou

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Product Categories

ABB	Bently Nevada	TRICONEX	GE
ICS Triplex	HIMA	MOTOROLA	WOODWARD
HONEYWELL	Foxboro	Schneider Modicon	YOKOGAWA
EPRO	MOOG	Westinghouse	Reliance
Emerson	B&R	ALSTOM	LAM
KONGSBERG	FANUC	National Instruments	Kollmorgen
Other Brands	Rexroth

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DEIF SCM4.1 Printed Circuit Board

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