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RX3i ALG390 Analog

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SKU 2170060  UPC 0799705802391


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Other Available Revisions for the IC694ALG390 IC694ALG390AIC694ALG390-LT

Common misspellings:
  • 1C694ALG390
  • IC69AALG390
  • IC694A1G390
  • IC694ALG39o
  • IC694ALG390

Product Description

IC694ALG390 is manufactured by GE Fanuc for the Rx3i PacSystem. The IC694ALG390 is a 2-channel analog module with two output channels and the capability to convert digital data. The channels update after each scan at an approximate update rate of 5 milliseconds. The IC694ALG390 module outputs can be configured to Default or Hold Last State if the CPU resets for any reason or enters stop mode.

The IC694ALG390 has a voltage range usage of -10 to +10 volts. The external voltage ranges from 18VDC to 30VDC with a 10% external voltage ripple. The module’s location is important when analyzing power sources. If the module is located in an RX3i Universal Backplane, an external source of Isolated +24 VDC is required to provide module power. If the module is located in an Expansion Backplane, its primary power source can be the Isolated +24 VDC from the backplane power supply or an external Isolated +24 VDC supply connected to the terminal block. If the external source is between 27.5-30 VDC, it takes over the module’s load from the Isolated 24 VDC system supply. An external source should be used if the user needs to maintain hold last state operation during a loss of backplane power.

Field connections should be wired using a decent grade of twisted, shielded instrumentation cable to minimize capacitive loading and noise. The shields should be connected to GND on the user terminal connector block. The GND connection provides access to the backplane (frame ground), which results in rejection of noise caused by shield drain currents.

Technical Specifications

No. of channels: 2
Voltage Range: -10 to +10 V
Calibration: Factory (to 2.5 mV per count) 
Update Rate: 5 msec
Output Load:   5 mA max
Power Consumption:   32 mA @ +5VDC,  120 mA @ +24VDC Isolated



Technical Information


Voltage Range

-10 to +10 volts


Factory calibrated to 2.5 mV per count

Supply Voltage (nominal)

+24Vdc, from isolated +24Vdc on backplane or user-supplied voltage source, and +5Vdc from backplane

External Supply Voltage Range

18Vdc to 30 V dc

External Supply Voltage  Ripple


Update Rate

Approximately 5ms (both channels) Update rate  is  application dependent.


2.5 mV (1 LSB = 2.5 mV)

Absolute Accuracy56

±5 mV at 25°C (77°F)


1 mV maximum, 0°C to 60°C (32°F to 140°F)

Output  Loading (maximum)

5 mA (2k minimum resistance)

Output Load Capacitance

2000  pF, maximum

Isolation, Field to Backplane (optical) and to frame  ground

250 V ac continuous; 1500 V dc for 1 minute

Internal  Power Consumption

32 mA from +5Vdc supply


120 mA from +24Vdc supply (isolated backplane or user supply)


Troubleshooting IC694ALG390

Troubleshooting information is available on IC694ALG390's website page; it also includes a datasheet user-manual and a wiring diagram.


Repair your IC694ALG390

PDF Supply can repair your IC694ALG390 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

Customer Questions and Answers

  • Question:  What is an IC694ALG390? Answer:  The IC694ALG390 is a 2 Channel, Voltage, Analog Output module from the GE Fanuc RX3i Series.
  • Question:  What does IC694ALG390 have and what is it capable of doing?  Answer:  IC694ALG390 has 2 output channels and each of those channels is capable of converting 13 bits of binary (digital) data to an analog output signal for field devices. 
  • Question:  What does IC694ALG390 provide?  Answer:  This module provides outputs in the range of -10 volts to +10 volts. Both channels are updated on every scan.
  • Question:  How can IC694ALG390's outputs be set up?  Answer:  They can be set up to either Default to 0 volts or Hold-Last-State if the CPU goes to the Stop mode or Reset. 
  • Question:  How is the selection of the output default made?  Answer:  It is made by a jumper on the module. (If a jumper is not installed, the outputs Hold Last State.
  • Question:  Into what slot can IC694ALG390 be installed?  Answer:  This module can be installed in any I/O slot of an RX3i system.
  • Question:  What is required if IC694ALG390 is located in an RX3i Universal Backplane?  Answer:  If this is the case, then an external source of isolated +24 VDC is required to provide power for the module. 
  • Question:  What should I do if my IC694ALG390 is not working properly?  Answer:  Your IC694ALG390 may need repair

For more information on the IC694ALG390 2 Channel, Voltage, Analog Output Module of the GE Fanuc RX3i Series, please see the Datasheet User-Manual. 

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