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Home > Electrical & Electronics > Electrical Control System > GE WESDAC D20ME 18-MAR-13 Control Output Module

GE WESDAC D20ME 18-MAR-13 Control Output Module

GE WESDAC D20ME 18-MAR-13 Control Output Module thumbnail-3

GE WESDAC D20ME 18-MAR-13 Control Output Module photo-1

GE WESDAC D20ME 18-MAR-13 Control Output Module photo-2

GE WESDAC D20ME 18-MAR-13 Control Output Module photo-3

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

Key Specifications

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

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Port of Shipment:

China

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Delivery time depends on order quantity.

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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

Operating Temperature -25℃~65℃

Relative Humidity 5% to 95% (non-condensing)

Storage Temperature -40℃~85℃

I. Product Overview

The GE WESDAC D20ME 18-MAR-13 is a high-performance industrial control module specifically designed for the control scenarios of medium-to-large industrial equipment in fields such as electric power, petrochemicals, and metallurgy—including substation automation systems, large-scale motor control platforms, and process industry production line control units. In the industrial automation system, it plays a critical role as the "control center": it is responsible for receiving various signals transmitted by on-site sensors and transmitters, executing preset complex control logics (such as equipment start-stop, parameter adjustment, and interlock protection), and accurately outputting control commands to actuators. Meanwhile, it is equipped with signal isolation, fault diagnosis, and data interaction functions, serving as a core hardware component that ensures the stable, safe, and efficient operation of industrial equipment.

This module adopts a standard industrial-grade board design (approximately 100mm in height, 230mm in width, and 25mm in thickness), and is compatible with the dedicated rack of the GE WESDAC series. It realizes high-speed data interaction and stable power supply with I/O modules and communication modules through the system backplane. The surface of the module features an industrial-grade anti-interference layout; key control chips and signal processing components are equipped with metal shields, and the pin soldering process complies with the IPC-A-610 Class 3 industrial standard. It can withstand long-term high-load operation and complex electromagnetic environments (such as strong electromagnetic radiation in substations and interference from high-frequency frequency converters). Additionally, it has wide-temperature, moisture-proof, and salt-fog-proof properties, enabling stable operation in industrial sites with multiple interferences, wide temperature differences, and high humidity—thus ensuring the accurate execution of control commands and the safety of equipment operation.

II. Technical Parameters

Control and Signal Processing Parameters

Parameter Category	Specific Specifications
Control Core	32-bit industrial-grade microprocessor (CPU) with a main frequency of ≥166MHz, supporting a Real-Time Operating System (RTOS), a control cycle of ≤2ms, and capable of parallel processing of over 800 logic points
Input Signal Support	Digital input: 16 channels of dry contacts/wet contacts (24V DC) with a response time of ≤100μs; Analog input: 8 channels of 4-20mA DC (accuracy ±0.1% FS), supporting the access of thermocouple (Type K/J) and resistance temperature detector (PT100) signals
Output Signal Capability	Digital output: 12 channels of relay output (dry contacts, configurable as normally open/normally closed, rated current 2A@250V AC); Analog output: 4 channels of 4-20mA DC (load resistance ≤500Ω, accuracy ±0.2% FS)
Logic Operation Capability	Supports programming in Ladder Diagram (LD) and Function Block Diagram (FBD), with built-in common algorithms such as PID regulation, interlock protection, and sequence control. It also supports custom control strategies, with an operation accuracy of ±0.1%
Data Storage Capability	Built-in 8MB industrial-grade RAM (for real-time data buffering) and 64KB EEPROM (for parameter storage). It supports the storage of historical data of key parameters within 1 hour (configurable sampling interval: 1-100ms), with a data loss rate of ≤0.001%

2. Electrical and Safety Features

Isolation Protection: The isolation voltage between input/output and the backplane is ≥2.5kVrms, and the isolation voltage between channels is ≥2kVrms. A dual design of photoelectric isolation and power isolation is adopted to effectively block common-mode interference (such as 500V common-mode voltage from frequency converters) and ground loops in industrial sites, ensuring a signal transmission accuracy rate of 99.999%.
Overvoltage and Overcurrent Protection: Digital output channels are equipped with self-recovery fuses (rated current 3A); analog output channels have a current limit of 30mA; input channels are equipped with ±30V DC overvoltage protection. These features prevent module damage caused by on-site wiring errors or equipment failures.
Redundant Power Supply: Supports redundant power supply of +5V DC (for digital circuits) and ±12V DC (for analog circuits), with an allowable voltage fluctuation of ±5%. In case of a power failure, a system alarm is triggered via the backplane bus to ensure the uninterrupted operation of control logic.
Electromagnetic Compatibility: Complies with the IEC 61000-6-2 industrial anti-interference standard. It provides electrostatic discharge (ESD) protection of ±2kV (contact discharge)/±4kV (air discharge) and electrical fast transient (EFT) protection of ±1kV (power port)/±0.5kV (signal port).

3. Environmental and Reliability Indicators

Operating Temperature: -25℃~65℃ (wide-temperature design), suitable for scenarios such as low-temperature outdoor control cabinets (e.g., substations in northern regions) and high-temperature industrial workshops (e.g., rolling mill workshops in iron and steel plants).
Storage Temperature: -40℃~85℃, with no risk of component aging or pin corrosion during long-term storage.
Relative Humidity: 5%~95% (non-condensing). The board surface is coated with a moisture-proof and salt-fog-proof coating with a thickness of ≥0.1mm, enabling stable operation in high-humidity and high-salt-fog environments (e.g., offshore platform power stations).
Mean Time Between Failures (MTBF): ≥100,000 hours. Key components (such as CPU, relays, and communication chips) use industrial-grade long-life devices, reducing maintenance frequency and downtime risks.

4. Communication and Diagnosis Parameters

Communication Interfaces: 1 RS485 interface (Modbus RTU protocol, configurable transmission rate: 9600-115200bps) and 1 dedicated backplane communication interface (for communication with the WESDAC system rack, data transmission rate up to 40MB/s). It supports real-time data interaction with system controllers and operation stations, with a response time of ≤50ms.
Diagnostic Functions: Supports channel short-circuit/open-circuit detection, power failure detection, CPU operation abnormality detection, and communication link failure detection. Fault information includes fault type and location (e.g., "AI CH3 Open", "Power Voltage Too Low"), which is uploaded to the monitoring system in real-time via the bus.
Configuration Method: Supports remote configuration via GE WESDAC's dedicated configuration software (e.g., WESDAC Configuration Tool). It allows setting of input/output parameters, control logic, and alarm thresholds. Configuration parameters are saved when power is off (stored in EEPROM), and backup and batch deployment of configuration files are supported.

III. Functional Features

1. Multi-Functional Control and Signal Adaptation

Compatibility with Multiple Signal Types: It can process digital, analog, and temperature signals (thermocouple/resistance temperature detector) simultaneously. Without additional modules, it can realize functions such as equipment start-stop control (digital), pressure/flow monitoring (analog), and temperature collection (thermocouple/resistance temperature detector). It is suitable for sensor-dense industrial scenarios (e.g., multi-parameter monitoring of chemical reactors) and saves 30% of cabinet space.
High-Precision Closed-Loop Control: Equipped with a built-in adaptive PID regulation algorithm, it supports online tuning of proportional (P), integral (I), and derivative (D) parameters. It can be used in closed-loop scenarios such as motor speed regulation, valve opening control, and temperature stabilization control, with a regulation accuracy of ±0.5%—ensuring industrial process parameters remain stable within the set range.
Rapid Interlock Response: For key interlock logics such as emergency shutdown (ESD), over-temperature protection, and overload protection, a hardware-level rapid response design is adopted. The time from signal triggering to output action is ≤10ms, preventing equipment damage caused by fault escalation and ensuring industrial production safety.

2. High Reliability and Environmental Adaptability

Dual Isolation Protection: Input/output and control circuits are fully electrically isolated, preventing reverse intrusion of on-site load interference into the control layer. It can operate stably in complex electromagnetic environments with dense high-power motors and multiple frequency converters (e.g., iron and steel plants, large chemical plants), and the accuracy of signal collection and output is not affected.
Fault Self-Recovery and Redundant Design: The self-recovery fuses of digital output channels automatically reset after the overload fault is eliminated, without manual replacement. It supports redundant power supply—when the main power supply fails, the backup power supply can switch within 100ms, ensuring continuous operation of the module and avoiding control interruption.
Withstand Harsh Environments: Its wide-temperature design, moisture-proof and salt-fog-proof coating, and high-level electromagnetic compatibility enable it to operate stably in a temperature range of -25℃~65℃, a humidity range of 5%~95% (non-condensing), and high-salt-fog environments. No additional temperature control or moisture-proof equipment is required, reducing system deployment costs.

3. Convenient Configuration and Operation & Maintenance Management

Software-Based Visual Configuration: Via the WESDAC Configuration Tool software, control logic can be written using a graphical interface (FBD/LD), and input/output parameters and alarm thresholds can be configured—no on-site hardware jumper modifications are needed. Configuration updates can be completed within ≤5 minutes, reducing the on-site operation workload of maintenance personnel.
Accurate Fault Localization and Feedback: The front panel of the module is equipped with LED indicators (PWR: Power Green, RUN: Operation Green, ERR: Fault Red, COMM: Communication Yellow). When a fault occurs, the ERR light turns on, and detailed fault information (including channel number and fault type) is uploaded via the bus. Maintenance personnel can quickly locate problems through the monitoring interface, reducing troubleshooting time by 60%.
Real-Time Status Monitoring: It supports real-time monitoring of the module's operating status (e.g., CPU load, communication rate, signal values of each channel, alarm records) via the WESDAC system operation station. This allows maintenance personnel to grasp the module's working condition, formulate preventive maintenance plans, and reduce the risk of sudden failures.

Product Tags: WESDAC D20ME 18-MAR-13