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IC660BBA023 Wiring

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  • IC660BBA023
  • IC660BBA023 Wiring

Product Description

IC660BBA023 is a thermocouple manufactured by GE Fanuc. IC660BBA023 has a power supply voltage of 18-56 VDC at 9W, 10% max ripple. The IC660BBA023 consists of a thermocouple input block with three isolated pairs of inputs. The system is configured with transformers to isolate power and optical couplers for appropriate signal isolation.

Factoring in sizing as an industrial utilization enhancer, the IC660BBA023 thermocouple has dimensions of 8.83” (22.44 cm) x 3.50” (8.89 cm) x 3.94” (10.00 cm). Weighing in at just 4 lbs. (1.8 kg), the unit is compact and suitable for many appropriate industrial requirements. Installation is easily facilitated with minimal impact on the operating units.

The IC660BBA023 block to block isolation is 1500 V for one minute, while the group to group isolation is at 300V. The IC660BBA023 block power supply system is designed with a power supply dropout time of 10mS minimum. Power system design facilitates the optimum power to weight ratio of the thermocouple, ensuring that operating power loads are kept to a minimum, while facilitating desired operating performance.

IC660BBA023 facilitates temperature change detection. IC660BBA023 has a voltage measurement of -25.0mV to +150 mV. Internal cold junction measurements of the IC660BBA023 facilitate an operating range of 0-60 C, while external cold junction measurement facilitates an operating range of -25.0C to +150.0C.

The IC660BBA023 input update time is a maximum of 3.0 seconds. System diagnostic configurations include Open Wire, Over Range, Under Range, High Alarm, Low Alarm, and Internal Fault. The IC660BBA023 circuit diagnostics are executed automatically for any active circuits in the system under assessment. During installation and system start up, systems can be configured to detect each of the aforementioned conditions. To a main system computer, these default configurations can be turned on or off, but with the IC660BBA023 connected handheld monitor, all faults will be reported. Inactive circuits will not be detected by the system.

The IC660BBA023 thermocouple can withstand storage temperatures of -40 C to 100C (-40F to +212F) and humidity of up to 95 non-condensing conditions. From a vibrational perspective, a rate of 5-10 HZ, 0.2” (5.08 mm) displacement, 10-200 Hz at 1 G vibration is allowed. 

Technical Specifications

Rated Voltage: 24/48 VDC 
# of Points: 6
Input Interface: J, K, T, E, B, R, S and N thermocouples 
Input measurement: Adjusted up to +/-100 deg C or F
Operating Voltage: 18 - 56 VDC
Points per Common:   3 groups of 2


GE Intelligent Platforms / GE Fanuc GE-IP Genius I/O

SKU 2172146  UPC 0799705798465

Part Number: IC660BBA023 / ic660bba023
Mfr/Brand Name: GE Automation
Mfr Number: IC660BBA023 / ic660bba023
Type: 24/48 volt DC Thermocouple Input Block, 6 channels

Technical Specifications

  • Internal fault detection
  • Open Wire detection
  • Input indication
  • Input alarms
  • 115 VAC/125 VDC
  • 24/48 VDC
Troubleshooting and Product Information for IC660BBA023

Download product information, troubleshooting guides and operation manuals to get your PLC operational.

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Other IC660BBA023

Available Revisions:

Confirm Your Revision Number

1C660BBA023 , GEFIC660BBA023 , CIMIC660BBA023


Block Type:

Six thermocouple–compatible inputs, three isolated groups of two.


115 VAC / 125VDCThermocoupleBlock TerminalAssemblyOnly

Electronics Assembly Only

24 / 48 VDC ThermocoupleBlock TerminalAssemblyOnly Electronics Assembly Only


IC660BBA103 IC660TBA103 IC660EBA103

IC660BBA023 IC660TBA023 IC660EBA023

Size (Height x width x depth):


LEDs (I/O Block): HeatDissipation:

8.83” (22.44cm) x 3.50” (8.89cm) x 3.94” (10.00cm)

4 lbs. (1.8 kg)

UnitOK,I / OEnabled 9Wmaximum

Block to Block Isolation: Group to GroupIsolation:

1500 V for one minute 300 V

115VAC/125 VDCblockpower:


Power supply dropout time:

115 VAC 125 VDC

93–132  VAC @ 9W 105–145 VDC  @ 9W

47–63 Hz 10% max. ripple

1 cycle 10 mS

24/48 VDCblockpower:

Powersupplyvoltage Power supply dropout time


18–56 VDC @ 9W, 10% max. ripple 10mSminimum


Voltagemeasurement: Range

Resolution Accuracy  (at 25C)

Bandwidth of input amplifier filter Temperaturecoefficient


–25.0mV  to +150mV

Less than $ 4 V

Less than $ 10V error typ, 20Vmax. 8 Hz

$ 2V / C typical

Internal Cold Junction Measurement:


Offset at 25C Linearity Resolution



0  to 60C

2 C typ. User adjustable to zero at any temperature.

$ 0.15C

Less than $ 0.01C

$    0.05    per C

External Cold Junction Measurement:


Scalefactors Resolution Accuracy


–25.0C   to   +150.0  C

1.0C per millivolt, 1.0K per microampere Less than 0.01  C

$ 0.1C

Input update time (all channels):

2.0 sec (typ), 3.0 sec (max)

Openwire detection response:

less than 5.0 seconds


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


Operating Temperature Storage Temperature Humidity



0C   to   +60C   (+32F   to  +140F)

–40C to +100 C   (–40F   to  +212F)

5% to 95% (non–condensing)

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


Troubleshooting IC660BBA023

Troubleshooting information is available on IC660BBA023's website page; it also includes a datasheet, user manual, and a wiring diagram.

Customer Questions and Answers

  • Question:  What is an IC660BBA023?  Answer:  The IC660BBA023 is a 24/48 VDC Thermocouple Input Block from the GE Fanuc Genius I/O Series. This block is primarily used for monitoring temperature with standard thermocouple types connected to the inputs. It can also be used for measuring low-level voltage input signals. 
  • Question:  What is the difference between IC660BBA023 and IC660BBA103?  Answer:  The only difference between these blocks is their power supply.
  • Question:  How many input circuits does IC660BBA023 have?  Answer:  This block has 6 input circuits. (They are in 3 separate groups.)
  • Question:  How much common mode voltage is allowed between 2 points in one group?  Answer:  +/- 10 V
  • Question:  What does each group have?  Answer:  Each group has 2 thermocouple input circuits and 2 remote cold junction compensation inputs.
  • Question:  What is the group to group isolation?  Answer:  300 volts
  • Question:  The configuration of each channel can be to use what?  Answer:  The configuration of each channel on IC660BBA023 can be to use an internal sensor, an external sensor, or an user-defined value for cold-junction compensation.
  • Question:  What diagnostic tests does IC660BBA023 perform?  Answer:
    • Internal fault detection
    • Open Wire detection
    • Over range and under range input indication
    • High and low input alarms
  • Question:  What should I do if my IC660BBA023 has failed?  Answer: Your IC660BBA023 may need repair

For more information on the IC660BBA023 Thermocouple Input Block of the GE Fanuc Genius I/O Series, please see the Datasheet User-Manual.

The final letter in the part number (ex. IC660BBA023K) 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.

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