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SKU 2176411  UPC 0799705793545


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Common misspellings:
  • 1C660BBA026
  • IC66oBBA026
  • IC6608BA026
  • IC660B8A026
  • IC660BBAo26
  • IC660BBA026

Technical Specifications for IC660BBA026

ManufacturerGE Fanuc
SeriesGenius I/O
Part NumberIC660BBA026
Product TypeCurrent Source Input Block
Input Accuracy0.1% of the full-scale reading
Input Resolution1 mA
Block Power115V AC, 125V DC
Heat Dissipation12 Watts
LED IndicatorsUnit OK, I/O Enabled

Product Description

The GE Fanuc Genius IC660BBA026 is a 24/48 volt DC Current-Source Analog Input Block. IC660BBA026 block is typically used to interface a controller to devices that transmit signals in the range of 4 to 20mA. The IC660BBA026 block has six 4-to-20mA input circuits with isolated channels. Each input provides a 24 volt current loop power supply that generates up to 25mA of current. Six independent inputs are isolated from all the other circuits on the block. Input accuracy is 0.1%. Input conversion time is selected to provide the right combination of noise rejection and input resolution. The IC660BBA026 block has programmable conversion times that range from 16ms - 400ms. Resolution notably increases as the conversion time lengthens. Input resolution is 1µA for 200mS conversion time.

Each input circuit can have upper and lower alarm limits programmed. The block always indicates a fault if either limit exceeds and consequently sends a message to the handheld monitor and CPU. When installing the IC660BBA026 into a redundant bus cable system, use the block’s dedicated digital output to pair it with a 24/48 VDC Bus-Switching Module (BSM). BSM circuitry and two output channels share with each other but are isolated from block inputs.

To configure blocks software and protect configuration from accidental changes, a handheld monitor is used. If communication with the CPU is interrupted, the user may decide whether block output holds at its last state or reverts to default settings. The user can set values for circuit scaling, turn fault reporting on/off, and decide how output feedback errors are handled. IC660BBA026 and IC660BBA106 are similar in all aspects except IC660BBA106 uses a 115 VAC power supply.

Technical Specifications

Rated Voltage: 24/48 VDC 
# of Points: 6
Input Range: 4 mA to 20 mA, 0 mA to 25 mA 
Resolution: 1 micro Amp
Operating Voltage: 18 - 56 VDC
Points per Common:   6 Isolated points
The IC660BBA026 Current Source Input Block is an input block manufactured by GE Fanuc Automation as a Genius I-O product. This module is a 6-input analog current source block, and it is intended for interfacing with the devices with analog signal current of 4 to 20 milliamps. For the easy configuration of this module, a Phase B hand-held monitor is recommended. It has a voltage to frequency converter functionality that offers digital signals according to the analog current received. The operators of this device can set the upper alarm as well as the lower alarm limits to specific input circuits. In addition, the input circuits comprise current loops rated at 24 Volts which provides a current of 25 milliamps. The GE Fanuc IC660BBA026 Input Block comes with a hand-held monitor that helps to detect diagnostics errors and alarm limits. Additionally, it has features that can help clear the old fault messages from the monitor.

The GE Fanuc IC660BBA025 Current Source Input Block is compatible with the GE Fanuc Series 6 PLCs, Series 5 PLCs, redundancy PLC systems, and Series 90-30 PLCs. It has diagnostic features that report the input current levels that are below the 2 milliamps minimum current limit. This module comes with 70 PPM per degree Celsius of typical thermal drift. The users are advised to leave a free space of 2 inches or more between the blocks during installation to enable proper cooling. The IC660BBA025 Current Source Input Block allows for mounting right side up or upside down through the drilling of the appropriate bolt holes for either orientation. There is also a separate mounting kit available which is shipped separately. The ground Terminal 5 is connected to the block chassis and it can be used to enhance block safety.

Technical Information



Block Type:

Catalog Numbers:

115 VAC / 125VDCCurrent Source Input block Terminal Assembly Only


24 / 48 VDC Current Source Input block Terminal Assembly Only ElectronicsAssemblyOnly

Six analog input circuits


IC660BBA106 IC660TBA106 IC660EBA106 IC660BBA026 IC660TBA026 IC660EBA026

Size (height x width x depth)


LED’s (I/O Block): BSM Control: HeatDissipation:

.83” (22.44cm) x 3.50” (8.89cm) x 3.94” (10.00cm)

4 lbs. (1.8 kg)

Unit OK, I / O Enabled

8Switchesone 24 / 48 VDC BSM (IC660BSM021) 12 Watts,maximum

Block to Block Isolation: Group to Group Isolation:

1500 V for one minute 1500 V rms

115VAC/125 VDC block power:

Power supply voltage Maximumcurrent Frequency / ripple

Power supply dropout time

24/48 VDC block power:

Power supply voltage Maximumcurrent Ripple

Power supply dropout time

115 VAC 125 VDC

93–132 VAC 105–145 VDC

250mA 140mA

47–63 Hz 10% max. ripple

1 cycle 10 mS min.


18–56 VDC


10% max.

10 mS min.

Input Signal Characteristics:

Input accuracy (at 25 C) Input resolution

Input conversion time Range

Overrange capacity Inputdiagnostics

Channel to channel isolation Thermal drift (from 25  C)

Input Impedance: Normal Mode Rejection:

Input Excitation Characteristics:

Open circuit voltage Short circuit current Loop impedance


0.1% of full scale reading


16.6mS to 400mS (user selectable)

4mA to 20mA

0mA to 25mA

Underrange, Overrange, High Alarm, Low Alarm, Open Wire

1500 volts RMS

70 PPM per    C typical

100 ohms $ 5%

–45 dB at 50, 60 Hz

24 VDC


1000 maximum (0mA to 20mA), 800 maximum (20mA to



Operating Temperature Storage Temperature Humidity


0  C to  +60  C   (+32  F to  +140 F)

–40   C to  +100  C   (–40  F to  +212 F)

5% to 95% (non–condensing)


5 – 10 Hz 0.2” (5.08mm) displacement, 10–200 Hz at 1G


Troubleshooting IC660BBA026

Troubleshooting information is available on IC660BBA026's website page; it also includes a datasheet, a user manual, and a wiring diagram.

Repair your IC660BBA026

PDF Supply can repair your IC660BBA026 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

  • Question:  What is an IC660BBA026?  Answer:  The IC660BBA026 is a 24/48 VDC Current-Source Analog Input Block of the GE Fanuc Genius I/O Series. This block is used to interface a controller to devices that provide 4-20mA analog signals.
  • Question:  What is the difference between IC660BBA026 and IC660BBA106?  Answer:  The only difference between these blocks is their power supply.
  • Question:  How many inputs are on this block?  Answer:  There are 6 inputs.
  • Question:  What will I need to test this block?  Answer:  You will need a slot rack, a power supply, a CPU, and IC693BEM331. You will also need a Hand Held Monitor. 
  • Question:  When using the HHM for configuration of IC660BBA026, at what baud rate should you be communicating?  Answer:  153.6K Standard
  • Question:  After configuration what should happen?  Answer:  The Enabled LED light should come on letting you know the block is enabled (this should happen when the CPU is in run mode).
  • Question:  What should you probe on this block when testing it?  Answer:  The "in" and "common" of each channel. 
  • Question:  How might I know there is something wrong with my IC660BBA026?  Answer:  If you power it up and you do not get any lights or if your inputs are not giving you proper readings then there could be something wrong with your block.
  • Question:  What is my next step if there is something wrong with my IC660BBA026?  Answer:  This is something we repair here at PDF Supply. 

The final letter in the part number (ex. IC660BBA026K) indicates the revision. Revision K and later use the newer style electronic housing and therefore need the newer style plastic door and may indicate some compatibility issues with the terminal strip.

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

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