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Home > Electrical & Electronics > Electrical Control System > GE 469-P5-HI-A20-E SR469 Motor Management Relay Series Module

GE 469-P5-HI-A20-E SR469 Motor Management Relay Series Module

GE 469-P5-HI-A20-E SR469 Motor Management Relay Series Module thumbnail-2

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GE 469-P5-HI-A20-E SR469 Motor Management Relay Series Module photo-4

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

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Material:

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Certification:

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Function:

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

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China

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Material Other

Certification Other

Function Other

Condition Other

Task Other

Mathematical Model Other

Signal Other

Customized Other

Structure Other

GE 469-P5-HI-A20-E SR469 motor management relay series module

Functional CharacteristicsBasic Features

Wide Control Power Range: 70-265VAC for alternating current and 90-300VDC for direct current.
Standard Design: Possibly with good dust-proof performance, and the protection class is IP20-X.

Protection Functions

Equipped with overload, short-circuit, and phase-loss protection functions, which can promptly cut off the power supply when the motor or circuit malfunctions, protecting equipment and personal safety.

Measurement and Monitoring Functions

Provides complete asset monitoring, including analog I/O, temperature, and comprehensive metering, helping users understand the motor's operating status and conduct asset management.

Communication Functions

Compatible with multiple protocols such as DeviceNet, Modbus RTU, and Modbus TCP/IP, facilitating integration with other devices or systems for remote monitoring and management.

Fault Diagnosis and Recording Functions

Features event reporting, data recording, and waveform capture functions, enabling users to quickly locate and analyze fault causes, reducing troubleshooting time and maintenance costs.

Display Functions

The front panel is equipped with a large LCD display that can show 40 characters, allowing users to view diagnostic messages such as trips or alarms locally. It also has motor and output status indicators for convenient operation and setup.

Other Features

Built-in simulation function to simplify the testing and debugging process.
Firmware and settings can be upgraded on-site for convenient subsequent function expansion and maintenance.

Working Principles

The working principles of the 469-P5-HI-A20-E SR469 motor management relay series module are mainly based on electromagnetic induction and various protection algorithms. It realizes protection, control, and monitoring of the motor through monitoring and analysis of the motor's operating parameters, as follows:

Control of Contact On/Off via Electromagnetic Induction Principle

The module contains an electromagnetic relay part composed of components such as a coil, contacts, and a spring. When the coil is energized, a magnetic field is generated, which attracts the iron core to move, driving the contact group to act, closing the normally open contacts and opening the normally closed contacts to achieve on/off control of the circuit. When the coil is de-energized, the spring force resets the iron core, and the contacts return to their original state.

Protection Principle Based on Current Monitoring

The module monitors the three-phase current of the motor by connecting to a current transformer (CT). When an overcurrent fault occurs in the motor, the current output from the secondary side of the CT exceeds the set threshold, triggering the overcurrent protection algorithm inside the module, which cuts off the motor power by controlling the outlet relay to achieve overcurrent protection. Meanwhile, by analyzing the unbalance degree of the three-phase current, when the unbalance degree exceeds the set value, it is determined that the motor may have problems such as winding faults or load imbalance, thereby triggering the unbalanced current protection function.

Protection Principle Based on Temperature Monitoring

The module supports multiple RTD (thermal resistance) inputs and can be directly connected to temperature sensors (such as PT100) for motor windings or bearings. It real-time monitors the motor temperature, and when the temperature exceeds the set warning or trip value, it sends an alarm signal or cuts off the motor power to prevent the motor from being damaged due to overheating.

Principle of Magnetic Balance Differential Protection

Using the principle of magnetic potential balance, under normal conditions, the magnetic potential of the current passing through the transformer at the first and end of the motor stator is balanced, and no current is generated on the secondary side of the current transformer. When a fault occurs inside the motor, the magnetic potential balance relationship is destroyed, and current is generated on the secondary side of the transformer, making the relay act to cut off the motor power, achieving differential protection.

Principle of Voltage-Related Protection

The module can monitor the motor voltage through the voltage transformer (VT) input. When the voltage is lower than the set undervoltage threshold or higher than the overvoltage threshold, it triggers the corresponding protection function to prevent the motor from being damaged due to abnormal voltage. In addition, according to the voltage-related overload curve, combined with the motor load situation, it can more accurately perform overload protection on the motor to adapt to different load characteristics and voltage environments.

Principle of Data Monitoring and Communication

The module has complete measurement functions and can collect parameters such as the motor's acceleration time, starting current, and thermal capacity. It also supports communication protocols such as Modbus RTU and communicates with control systems such as PLC and DCS through serial ports such as RS232 and RS485. It uploads the collected data to the control system to achieve remote monitoring and parameter configuration and can also receive instructions from the control system to perform corresponding actions.

Application ScenariosPetrochemical Industry

In oil refineries, it can real-time monitor the winding temperature and current of pump and compressor motors, combined with Modbus communication to achieve remote control and fault early warning, ensuring the continuity of the production process.
In the corrosive environment of the petrochemical industry, its conformal coating can resist dust, chemical corrosion, and high humidity, ensuring stable equipment operation.

Power Industry

Can be used for high-voltage motor control in substations, supporting voltage-related overload curves and undervoltage automatic restart functions to adapt to power fluctuation environments.
The module's wide voltage input range and anti-electromagnetic interference design enable it to work reliably in the complex environment of the power system.

Water Treatment Industry

In sewage treatment plants, its multiple RTD inputs can simultaneously monitor multiple temperature points of aeration blowers, combined with current analysis to optimize equipment operation efficiency and reduce energy consumption.
It can also protect and monitor water pump motors to ensure the stable operation of the water supply system.

Mining Industry

Can be applied to mining conveyor belt systems, monitoring the temperature of motor bearings through RTD sensors, combined with mechanical blockage detection functions to predict potential faults and avoid production interruptions.
It can also be used for other motor equipment in mines, such as hoists and ventilators, to ensure the safety and continuity of mining production.

Metallurgical Industry

In the control of melting furnace stirring motors in steel plants, the relay's adaptive learning function can dynamically adjust protection strategies to adapt to the frequent start-stop needs of high-inertia loads.
It can also be used for motor protection of equipment such as rolling mills, preventing motor damage caused by faults such as overload and short circuit through multiple protection functions, reducing equipment maintenance costs and downtime.

Product Tags: 469-P5-HI-A20-E