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Help CenterGE VMIVME-4150 VME Bus Isolated Analogue Output Module
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I. Overview
GE VMIVME-4150 is an industrial-grade VME bus isolated analog output module. It is defined as a 6U standard VMEbus board card, specially designed to provide high-precision and high-isolation analog signal output capability for industrial control systems. Its core function is to convert digital control signals into standard analog signals to drive field devices such as actuators, regulating valves and instruments, serving as a key output component for industrial process control and signal conditioning systems.
The module is equipped with a 12-bit DAC conversion chip and provides 12 fully isolated analog output channels. The isolation voltage between channels and between channels and the bus reaches 1000Vpk (1500VDC optional). It supports dual-mode output of voltage and current, compatible with multiple standard signal ranges including ±2.5V, ±5V, ±10V (voltage) and 4-20mA (current). It adopts optocoupler isolation to achieve complete electrical isolation, built-in NVRAM to store calibration parameters, and supports on-board self-diagnosis and status readback, adapting to harsh industrial environments.
Complying with VMEbus IEEE 1014-1987 specification, the module supports A24:D32 or A16:D32 slave mode and must be used with VME bus master modules such as CPU board cards. It is widely applied in aerospace testing, industrial process control, power monitoring, motion control and other fields. Currently in restricted production, spare parts are still available to meet maintenance demands of legacy systems.
II. Product Parameters
| Parameter Name | Specifications |
|---|---|
| Model | GE VMIVME-4150 |
| Manufacturer | General Electric |
| Product Series | VME Bus Series |
| Product Type | Isolated analog output module, 6U VMEbus board |
| Core Functions | Digital-analog signal conversion, isolated signal output, industrial actuator driving, system status diagnosis |
| Channel Configuration | 12 fully isolated analog output channels (4/8-channel configuration optional) |
| DAC Resolution | 12-bit |
| Output Signal Type | Voltage: ±2.5V, ±5V, ±10V; Current: 4-20mA, 0-20mA, 5-25mA |
| Conversion Accuracy | Voltage output: ±0.05% full scale; Current output: ±0.08% full scale |
| Isolation Performance | Isolation between channels & between channel and bus; Standard 1000Vpk, optional 1500VDC |
| Response Time | DC to 1kHz |
| Load Capacity | Voltage output: 10mA at full scale ±10V; Current output: Compatible with standard loads |
| Bus Interface | VMEbus, supports A24:D32 / A16:D32 slave mode |
| Power Requirement | +5V@400mA, +12V@125mA |
| Environmental Parameters | Operating Temperature: -20℃~85℃; Storage Temperature: -40℃~125℃; Shock Resistance: 25g (11ms, all axes) |
| Physical Specifications | Dimension: Standard 6U VME size; Cooling Method: Conduction cooling |
| Special Functions | Optoelectronic isolation, NVRAM calibration storage, self-diagnosis, static readback register |
| Applicable Systems | VME bus control system, industrial process control, motion control, aerospace test system |
III. Technical Features
High-isolation Anti-interference Design: Optocoupler is adopted to realize complete electrical isolation between channels and between channels and VME bus. The standard isolation voltage is 1000Vpk (1500VDC optional), which effectively suppresses industrial electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring stable signal output in harsh environments.
High-precision Signal Output: Equipped with a 12-bit DAC conversion chip, the voltage output accuracy reaches ±0.05% full scale and current output accuracy ±0.08% full scale. It supports multi-range signal configuration, matches interface requirements of different industrial equipment, and meets high-precision control scenarios.
Flexible Channel & Signal Configuration: Provides 12 isolated output channels (4/8-channel simplified configuration optional) with voltage/current dual output modes. It covers voltage range from ±2.5V to ±10V and standard 4-20mA current range, compatible with various field actuators such as regulating valves, inverters and instruments.
Reliable Data Storage & Calibration: Built-in NVRAM stores on-board calibration tables for each output type; calibration parameters will not be lost after power failure, ensuring stable output accuracy during long-term operation. It supports static readback registers to read output status in real time, simplifying program control and troubleshooting.
Comprehensive Status Monitoring & Diagnosis: Integrated on-board self-diagnosis function monitors key parameters such as DAC conversion circuit, power status and channel load in real time, and feeds back diagnostic information via VME bus. Front panel is equipped with power, ready and channel status indicator lights for quick module status judgment and convenient on-site maintenance.
Industrial Environmental Adaptability: Adopts conduction cooling design. Operating temperature: -20℃~85℃, storage temperature: -40℃~125℃; withstands 25g impact (11ms, all axes). Complies with VMEbus IEEE 1014-1987 specification, suitable for harsh installation environments such as industrial control cabinets and field equipment cabins.
Convenient System Integration & Maintenance: Standard 6U VME board design is compatible with mainstream VME bus backplanes and supports A24:D32 / A16:D32 slave mode, enabling direct networking with VME bus CPU modules and I/O modules. Modular design facilitates installation and replacement, reducing upgrade and maintenance costs of legacy systems.
IV. Application Scenarios
1. Industrial Process Control
Widely used in process control systems of chemical, oil & gas, power, metallurgy and other industries. As the output core of VME bus control systems, it converts digital control signals into 4-20mA current or ±10V voltage signals to drive regulating valves, inverters, actuators and other equipment, realizing closed-loop control of process parameters such as temperature, pressure and flow. Its high isolation and high precision ensure stable and continuous production.
2. Aerospace & Test Measurement
Suitable for aerospace equipment testing and laboratory precision control. It outputs control signals to test tooling, simulated loads, precision instruments and other equipment. The 12-bit high precision and high isolation meet strict requirements such as avionics testing and engine parameter simulation. It also supports multi-channel synchronous output for complex test systems.
3. Motion Control
Applied in high-end motion control systems such as CNC machine tools, robots and servo drive systems. It outputs analog signals to control speed and position of servo motors and stepper motors. The fast response time (DC to 1kHz) meets real-time requirements of motion control, and high isolation effectively suppresses electromagnetic interference generated by motor operation to guarantee control accuracy.
4. Legacy VME System Maintenance & Upgrade
As a classic analog output module of GE VME series, it is widely used for spare parts replacement and upgrading of aging VME bus control systems. It can restore or improve analog signal output capability without reconstructing system architecture, adapting to operating VME architecture systems such as semiconductor equipment and industrial automation production lines, and extending equipment service life.
5. Energy & Infrastructure
Applied in control systems of power substations, new energy power stations, water conservancy projects and other infrastructure. It outputs analog signals to control excitation devices, governors, monitoring instruments and other equipment. The wide operating temperature range (-20℃~85℃) adapts to outdoor and high-temperature harsh environments, and high isolation ensures safe and stable signal transmission of power systems.
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