The GE Fanuc IC200ALG326, also cataloged as the IC200ALG326 Analog Output Module, operates as a dedicated hardware component for multi-channel current-sourcing loop generation within VersaMax platforms. The module executes digital-to-analog signal conversion across 8 single-ended output channels, driving 4-20 mA or 0-20 mA current loops to control field positioners, actuators, and signal re-transmission loops.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC200ALG320 / IC200ALG326 |
| Brand | GE Fanuc |
| Origin | USA |
| Weight | 0.44 lbs (0.20 kg) |
| Dimensions | Single-slot VersaMax module footprint |
| Operating Temp | 0 deg C to 60 deg C |
| Power Consumption | 50 mA max at 5 VDC (backplane bus); 185 mA max at full scale (external load) |
| Number of Outputs | 8 single-ended current-sourcing channels (1 group) |
| Output Signal Ranges | 4-20 mA (default), 0-20 mA (jumper configured) |
| Resolution | 13-bit / 15-bit internal processing |
| Update Rate | 15 ms maximum |
| External Power Supply | 18 to 30 VDC |
| External Inrush Current | 2 A maximum |
| Isolation | 250 VAC continuous, 1500 VAC for 1 minute |
| Diagnostic Functions | Onboard diagnostics with 2 status LEDs |
Backplane Bus Communication Velocity & Firmware Flash Compatibility
The module executes real-time data frame transfers over the VersaMax 5 VDC system backplane, consuming up to 50 mA from internal logic power while converting CPU commands into physical current signals with a maximum update rate of 15 ms. Communication parameters, output range selection, and default fail-safe hold behaviors are initialized directly via host processor software or terminal jumper settings. Operating channels feature continuous frame-to-ground galvanic isolation rated at 250 VAC continuous and 1500 VAC for 1 minute to prevent ground loop noise from corrupting system bus timing.
Frequently Asked Questions
Q: How is the output current range switched between 4-20 mA and 0-20 mA?
A: The default output range is 4 to 20 mA. Operating in the 0 to 20 mA range requires setting a physical hardware jumper on the wiring base terminal structure.
Q: Can the IC200ALG326 be inserted or removed under power (hot-swapped)?
A: Hot insertion is supported by the hardware base, but must be executed strictly aligned and without angular displacement to prevent momentary disruption of backplane power to adjacent modules.
Q: What power draw does the external supply experience when all 8 outputs drive full scale?
A: The external 18-30 VDC user supply draws up to 100 mA with no load connected, and up to 185 mA when all 8 outputs operate at full-scale current output.
Field Installation Guidelines
- Mount the module body directly onto the VersaMax carrier or DIN rail slot, verifying positive mechanical alignment with backplane connectors.
- Select output signal range limits (4-20 mA vs. 0-20 mA) using the appropriate terminal jumper settings prior to field connection.
- Wire field current loops using shielded twisted-pair cabling to prevent inductive coupling and noise interference.
- Terminate cable shields directly to system ground or via interposing grounding terminals based on cabinet earth layout guidelines.
- Verify external 18 to 30 VDC field supply connections before energizing the system rack.
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