GE VMIVME-4116 - VMEbus 16-Channel Isolated Analog Output Module

GE VMIVME-4116 – VMEbus 16-Channel Isolated Analog Output Module

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Product Introduction:
The GE VMIVME-4116 is a 16-channel analog output module specifically designed for applications requiring galvanic isolation between the VMEbus backplane and the field outputs. The “4116” designation identifies a 16-channel analog output with enhanced isolation (the “4” prefix often denotes isolation in GE VME nomenclature). This board is used when the field devices (valves, actuators, transmitters) are located in electrically noisy environments or at different ground potentials than the control system. The isolation prevents ground loops and voltage transients from damaging the sensitive VMEbus CPU.

Technical Specifications:
Board Type: VMEbus Isolated Analog Output Module
Channels: 16 independent analog output channels
Output Types: 4-20mA or 0-10V (per channel configurable)
Resolution: 16-bit D/A conversion
Isolation: 1500V RMS channel-to-channel and channel-to-ground (double that of standard 2540)
Accuracy: +/- 0.05% of full scale
Update Rate: 10ms simultaneous update
Settling Time: Less than 10 microseconds
VMEbus Interface: D32/A32
Power: Isolated 5V DC for output circuitry (separate from VMEbus power)
Form Factor: 3U VMEbus Eurocard

Functional Features:
1500V Isolation: Provides twice the isolation of standard analog output boards, protecting against severe electrical transients.
Independent Ground Reference: Each output channel has its own isolated ground reference, eliminating ground loop errors.
Per-Channel Configuration: Each channel independently configurable for output type, range, and filtering.
Fail-Safe Outputs: Configurable to output 0mA, 4mA, or hold last value on communication loss.
LED Indicators: Bright per-channel LEDs for instant status verification.
Burnout Detection: Detects open and shorted field wiring on every channel.

Application Scenarios:
Hazardous Area Control: Drives field devices in explosive atmospheres where isolation is mandatory for safety.
Long Cable Runs: Used when field devices are hundreds of meters from the control room, preventing ground potential differences.
High-Noise Environments: Protects against electrical noise from large motors, welders, and variable frequency drives.
Pharmaceutical Manufacturing: Ensures clean, isolated signals for precise dosing and mixing control.

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