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The GE Fanuc IC200ALG320, also cataloged as the IC200ALG320 Analog Output Module, operates as a dedicated hardware component for multi-channel analog current signal generation within VersaMax I/O platforms. The unit executes digital-to-analog signal conversion across 4 current-sourcing channels, delivering 4-20 mA control signals to field actuators and positioning devices.

Hardware Specifications

Parameter Specification
Model IC200ALG320
Brand GE Fanuc
Origin USA
Weight 0.63 lbs (0.28 kg)
Dimensions Single-slot VersaMax module footprint
Operating Temp 0 deg C to 60 deg C
Power Consumption 50 mA max from backplane; 240 mA max external current consumption
Number of Outputs 4 analog current-sourcing outputs
Output Signal Range 4-20 mA
Analog Resolution 12 bits (4 uA)
Measurement Accuracy 0.3% typical, +/-1% maximum full scale
Update Rate 0.3 ms maximum
External Power Voltage 18 to 30 VDC or 9.6 to 15 VDC
Diagnostic Functions Loss of user side power detection
Status Indicators 2 LEDs (FLD PWR and OK)

Backplane Bus Communication Velocity & Firmware Flash Compatibility

The module interfaced through the VersaMax backplane structure operates with a maximum update rate of 0.3 ms, processing 12-bit output directives sent from the CPU or network interface unit. Output channel logic draws up to 50 mA from the internal 5 VDC system bus while utilizing external 12/24 VDC user side power for field-loop actuation. Upon fault detection or loss of backplane communication, the hardware executes configurable fail-safe states, reverting channels to 4 mA or holding the last valid output state via jumper selection.

Frequently Asked Questions

Q: Does the IC200ALG320 require an external power supply to operate field output loops?

A: Yes, while logic power is derived from the 5 VDC backplane bus (50 mA max), the analog output channels require external field power rated at 18 to 30 VDC or 9.6 to 15 VDC.

Q: What fail-safe output response modes are available upon CPU stoppage or fault?

A: The module can be configured via jumper settings to either hold the last known output state or drop the output signal to 4 mA.

Q: How does the module indicate operating status and field power presence?

A: The module contains 2 onboard LED indicators: the OK LED confirms backplane power supply and system initialization, while the FLD PWR LED confirms active user side field power.

Field Installation Guidelines

  1. Snap the module securely onto the VersaMax I/O rail carrier prior to attaching field termination blocks.
  2. Confirm that backplane logic power is de-energized before inserting or removing the output module.
  3. Wire the external 18-30 VDC loop power supply and 4-20 mA field actuators using shielded twisted-pair cables.
  4. Ground cable shields at a single ground point on the enclosure grounding bar to suppress noise and prevent ground loops.
  5. Verify output response behavior configurations (Hold Last State vs. 4 mA default) via hardware jumper placement before commissioning.

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