GE VMIVME 4140-000 Analog Output Board

GE VMIVME 4140-000 Analog Output Board

Product Overview

The GE VMIVME 4140-000 Analog Output Board is a high-precision industrial control module developed by General Electric (GE) based on the VME bus architecture. As the "digital to analog conversion core" in industrial automation systems, it is mainly used to convert the digital signals output by the controller into continuous analog signals, and drive the actuators (such as regulating valves, servo motors, frequency converters, etc.) to achieve precise process control. This module integrates high-resolution DA conversion chips, stable signal conditioning circuits, and flexible programming configuration functions, and is compatible with VME bus standard control systems. It has the characteristics of high output accuracy, strong anti-interference ability, and good stability, and is widely used in industrial fields such as process control, motion control, metallurgy and chemical engineering, energy and power that require strict analog output accuracy.

Core Features

1. High precision multi-channel analog output

Adopting a 16 bit high-resolution DA conversion chip, supporting 8 independent analog output channels, each channel can independently configure output type and range, including commonly used industrial standard signals such as 4-20mA current output and 0-10V voltage output. The current output accuracy can reach ± 0.01% FS, the voltage output accuracy can reach ± 0.02% FS, and the output signal ripple is less than 1mVpp. It can provide stable and accurate control signals for the actuator, meeting the requirements of high-precision process control and motion control.

2. Flexible output configuration and calibration function

Support software programming to configure the output range, signal type, and output mode (normal output/hold output/fail safe output) of each channel. The fail safe output can be preset to a specific value (such as 4mA, 0V), and automatically switches when the module experiences communication failure or power supply abnormality, ensuring that the actuator is in a safe state. The module has a built-in self calibration function, which can send calibration instructions through the VME bus to complete zero and full-scale calibration without the need for external calibration equipment, simplifying the maintenance process.

3. Excellent anti-interference and signal isolation performance

Adopting inter channel optoelectronic isolation and power isolation technology, the isolation voltage can reach up to 2500Vrms, effectively avoiding signal crosstalk between channels and the impact of external electromagnetic interference on the output signal. The output signal adopts a differential drive circuit design, which has strong resistance to common mode interference. It can still maintain the stability of the output signal in strong interference industrial environments such as high-power motors and frequency converters, ensuring precise action of the actuator.

4. Standard VME bus compatibility and expansion

Strictly following the VMEbus Rev. C. standard, supporting 32-bit data bus and 16 bit address bus, with a data transfer rate of up to 40MB/s, it can quickly respond to controller instructions and achieve high-speed updates of analog signals. The module can seamlessly integrate with various VME bus controllers and systems, supporting collaborative work with other modules in the GE VMIVME series (such as analog input boards and digital I/O boards), making it easy to build a complete VME bus control system.

5. Comprehensive fault diagnosis and status monitoring

Equipped with a comprehensive fault diagnosis circuit, it can monitor the power supply status of modules, the working status of DA conversion chips, and output circuit faults (such as short circuits and overloads) in real time, and upload fault information to the controller through the VME bus. The front of the module is equipped with an array of LED status indicator lights, including power indicator lights, channel readiness indicator lights, and fault indicator lights. Staff can intuitively judge the overall operating status of the module and the working conditions of each channel through the indicator lights, and quickly locate faults.

6. Wide temperature adaptability and high reliability

Adopting industrial grade high stability components and wide temperature circuit design, the working temperature range covers -40 ℃~70 ℃, which can adapt to harsh industrial environments such as high and low temperatures, and can operate stably without the need for additional temperature control equipment. The mean time between failures (MTBF) of the module exceeds 600000 hours, supporting 24-hour continuous operation, meeting the long-term stable operation needs of industrial sites, and reducing equipment maintenance frequency and downtime losses.

Key technical parameters

Product Model

GE VMIVME 4140-000

Bus standard

VMEbus Rev. C.1， 32-bit data bus, 16 bit address bus

Number of output channels

8 independent channels

DA conversion resolution

16 bits

Output signal type

4-20mA DC current output, 0-10V DC voltage output (configurable)

Output accuracy (current)

±0.01% FS（25℃），±0.05% FS（-40℃~70℃）

Output accuracy (voltage)

±0.02% FS（25℃），±0.08% FS（-40℃~70℃）

Output load (current)

0-600 Ω (4-20mA mode)

Output load (voltage)

≥ 1k Ω (0-10V mode)

signal isolation

Channel and power isolation, isolation voltage 2500Vrms

Output update rate

All channels update synchronously ≤ 1ms

Ripple and Noise 

≤ 1mVpp (voltage output), ≤ 1 μ App (current output)

Fault safety output

Configurable (such as 4mA, 0V, maintain last value)

Working temperature range

-40℃ ~ 70℃

Storage temperature range

-55℃ ~ 85℃

relative humidity

5%~95% (no condensation)

power supply voltage

+5V DC, ± 12V DC (provided by VME bus)

power consumption

≤ 20W (under full load conditions)

Mechanical dimensions (length x width x height)

160mm × 100mm × 233mm (standard 3U VME module size)

weight

About 0.9kg

Applicable scenarios

The GE VMIVME 4140-000 analog output board is widely used in various industrial automation control scenarios due to its high-precision output, multi-channel configuration, and excellent anti-interference ability. Typical applications include:

-In the field of process control, it is used to drive actuators such as control valves and solenoid valves in the production processes of chemical, petroleum, pharmaceutical and other industries. By outputting precise 4-20mA current signals, it controls process parameters such as medium flow rate, pressure, temperature, etc., ensuring stable production processes at set values and improving product quality.

-Motion control scenario: Used for speed and position control of CNC machine tools, robots, and servo systems, outputting 0-10V voltage signals or 4-20mA current signals to control servo drives, achieving smooth speed regulation and precise positioning of motors, and meeting high-precision machining and assembly requirements.

-Metallurgy and Rolling Industry: Suitable for temperature control of blast furnace hot blast stoves in steel plants and tension control during steel plate rolling processes. By outputting stable analog signals to drive hydraulic actuators or variable frequency controllers, the temperature stability and rolling accuracy of the metallurgical process are ensured.

-Energy and power system: In the control system of thermal power generation, hydropower generation, and photovoltaic power stations, it is used to control the power regulation of turbine speed control valves, turbine guide vanes, and photovoltaic inverters, and achieve efficient regulation and stable grid connection of energy production through precise analog signal output.

-Intelligent manufacturing and automated production line: used for controlling the material conveying speed, driving the metering pump of packaging equipment, and controlling the flow of spraying equipment in automated production lines. It achieves collaborative control of multiple actuators through multi-channel independent output, improving the automation level of production lines.

-Testing and simulation equipment: Used in industrial testing instruments and laboratory simulation systems to generate standard analog signals (such as precise voltage and current signals), providing calibration signals or simulation condition signals for sensors, actuators, and other equipment, supporting product performance testing and research and development.