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IC693PWR324 Image of IC694ALG391 IC694ALG391 In Stock! Output module analog 2 points, current.  IC694A IC694AL IC694ALG PDFsupply als IC694ALG391

SKU 2178264  UPC 0799705802407

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Other Available Revisions for the IC694ALG391 ABLT

Common misspellings:
  • 1C694ALG391
  • lC694ALG391
  • IC69AALG391
  • IC694A1G391
  • IC694ALG39l
  • IC694ALG391

Technical Specifications for IC694ALG391

ManufacturerGE Fanuc
SeriesRX3i PACSystems
Part NumberIC694ALG391
Product TypeAnalog Output Module
Data Conversion Rate12 Bits of Binary Data to Output Signals
Output Signal Range0-20 mA, 4-20 mA
Series 90-30 Expansion BackplaneSupported
RX3i Serial Expansion BackplaneSupported
LED Indicator1 "Module OK" LED

Product Description

The GE Fanuc IC694ALG391 is a two channel analog current output module. Each of the two channels is capable of converting 12 bits of binary data for field devices. Additionally, each output can be set up using a jumper to construct varying signals, 0 to 20 mA or 4 to 20 mA. Each output can be set as a less exact voltage source, and the range is made with a jumper or resistor on the terminals as decided by the user.

Though an external source of isolated +24 VDC is vital for power for the module, it can be linked via the TB1 connector on the backside or directly to the terminal block. Both are effective methods for this model. However, if the user needs to preserve hold last state operation during a loss of backplane power, then an outside source is needed. An update rate of 5 milliseconds on both channels is application dependent but available.

When installing the GE Fanuc IC694ALG391, a good grade of twisted, shielded instrumentation cable should be used to lessen noise and capacitive loading. Each channel’s range is set with jumpers on the module terminals, and for voltage operation, a 250 Ohm resistor can be used in place of a voltage jumper if desired. Note: If the output default jumper is installed on module terminals 11 and 13, then both outputs will default, using the low end of their range. If the output jumper is not installed, both outputs will hold the last valid output value that was acknowledged. However, this route requires an external +24 VDC power supply.

Technical Specifications

No. of channels: 2
Voltage Range: 1-5 V, 0-5 V
Current Range: 0-20 mA, 4-20 mA
Update Rate: 5 msec
Output Load: 5 mA max
Power Consumption:   30 mA @ +5VDC,  120 mA @ +24VDC Isolated



The IC694ALG391 module is an analog output module manufactured by GE Fanuc Automation as part of the GE Fanuc RX3i PACSystems series. It is compatible and well matched with every CPU in the GE Fanuc RX3i PACSystems series. It comes with 2 output channels and this output module is also designed and intended to be installed in any of the input and output slots in GE RX3i serial expansion backplane or GE Series 90-30 expansion backplane as part of a GE industrial PLC system. Do not remove or install the GE IC694ALG391 output module in any of the backplanes while power is applied. It does not support hot swapping, which is the removal or installation with the power applied to the host system. Trying to hot swap this unit may cause damage to the backplane, result in serious injury to the operators, or cause malfunctioning in the entire PLC.

The GE Fanuc IC694ALG391 RX3i PACSystems analog output module is capable of handling various loads at different DC voltage levels. It has a capacity for maximum loads of 30 milliamps or 0.15 Watts at 5 Volts DC, and it can handle loads of up to 5.16 Watts or 215 milliamps at an isolated voltage of 24 Volts DC. The 2 output channels of the IC694ALG391 analog output module convert the digital data or 12 bits of binary data into analog output signals for various field devices that can be connected to it. The operators have the ability to configure output modules like this one with jumpers and produce converted output signals in a current range of 4 to 20 milliamps or 0 to 20 milliamps. When the GE Fanuc IC694ALG391 output module is operating normally, it has a green “Module OK” LED indicator that lights up.

Technical Information


Output Current Range

4 to 20 mA and 0 to 20 mA

Output Voltage Range

1 to 5 volts and 0 to 5 volts


Factory calibrated to 4 µA per count

External Supply Voltage Range

20 VDC to 30 VDC. Depends on the current load


and the ambient temperature as shown below.

External Supply Voltage Ripple


Update Rate

5 milliseconds (approximate, both channels)


Application dependent.



4 to 20mA

4 µA (1 LSB = 4 µA)

0 to 20mA

5 µA (1 LSB = 5 µA)

1 to 5V

1 mV (1 LSB = 1 mV)

0 to 5V

1.25 mV (1 LSB = 1.25 mV)

Absolute Accuracy: *


4 to 20mA

+/-8 µA at 25°C (77°F)

0 to 20mA

+/-10 µA at 25°C (77°F)

1 to 5V

+/-50 mV at 25°C (77°F)

0 to 5V

+/-50 mV at 25°C (77°F)

Maximum Compliance Voltage

25 VDC

User Load (current mode)

0 to 850 Ohms

Output Load Capacitance (current mode)

2000 pF

Output Load Inductance (current mode)

1 H

Maximum Output Loading (voltage mode)

5 mA (2 K Ohms minimum resistance)


(2000 pF maximum capacitance)

Isolation, Field to Backplane (optical) and to

250 VAC continuous; 1500 VAC for 1 minute

frame ground


Internal Power Consumption

30 mA from +5 VDC supply


215 mA from Isolated +24 VDC supply



Troubleshooting IC694ALG391

Troubleshooting information is available on IC694ALG391's website page; it also includes a datasheet user-manual and a wiring diagram.


Repair your IC694ALG391

PDF Supply can repair your IC694ALG391 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 IC694ALG391?  Answer:  The IC694ALG391 is a 2 Channel, Current, Analog Output module from the GE Fanuc RX3i Series.
  • Question:  What does IC694ALG391 have and what is it capable of doing?  Answer:  IC694ALG391 has 2 output channels and each of those channels is capable of converting 12 bits of binary (digital) data to an analog output signal for field devices. 
  • Question:  What does each output of IC694ALG391 produce?  Answer:  Each output can be set, using a jumper on the module, to produce output signals from 0 to 20 mA or 4 to 20 mA.
  • Question:  How else can each output be set up?  Answer:  Each output may also be set up as a less accurate voltage source. 
  • Question:  How is the selection of current or voltage output made?  Answer:  It is made by a jumper or a resistor on the module terminals. 
  • Question:  How are the module outputs set up?  Answer:  They can be set up to either Default to 0/4 mA or Hold-Last-State if the CPU goes to the Stop mode or Reset.
  • Question:  How is the selection of the output Default State made?  Answer:  It is made by a jumper on the module's terminal board.
  • Question:  What should I do if my IC694ALG391 is not working properly?  Answer:  Your IC694ALG391 may need repair

For more information on the IC694ALG391 2 Channel, Current, Analog Output Module of the GE Fanuc RX3i Series, please see the Datasheet User-Manual. 

ST. LOUIS, Feb. 1, 2019 – Emerson today announced it has completed the purchase of Intelligent Platforms from General Electric.

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