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- GE
- IC695ALG626
- RX3i Analog Input Module
- USA
- 145 x 34 x 140 mm
- 0.227 kg
- Xiamen, China
- New & In Stock
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Product Overview
The GE IC695ALG626 is an RX3i Analog Input Module designed for high-performance industrial automation and process control applications. As part of the PACSystems RX3i platform, the module converts analog signals from field instruments into high-resolution digital data for processing by the RX3i CPU. It is widely used in applications requiring precise measurement of process variables such as pressure, temperature, flow, level, and other analog signals.
The module integrates seamlessly with GE RX3i PLC systems, providing dependable signal acquisition, comprehensive diagnostics, and high immunity to industrial electrical noise. Its compact design, measuring 145 × 34 × 140 mm with a weight of approximately 0.227 kg, allows high-density installation within RX3i control cabinets while simplifying maintenance and future system expansion.
Designed for continuous industrial operation, the IC695ALG626 delivers stable measurement accuracy, excellent long-term reliability, and compatibility with demanding industrial environments including manufacturing, power generation, water treatment, oil & gas, mining, and chemical processing.
Product Identification
| Parameter | Specification |
|---|---|
| Manufacturer | GE |
| Product Series | PACSystems RX3i |
| Model | IC695ALG626 |
| Product Type | Analog Input Module |
| System Platform | RX3i PLC |
| Function | Analog Signal Acquisition |
| Installation | RX3i Universal Backplane |
| Dimensions | 145 × 34 × 140 mm |
| Weight | 0.227 kg |
| Mounting | RX3i Rack |
| Cooling Method | Natural Convection |
| Application | Industrial Automation |
Technical Specifications
| Technical Item | Specification |
|---|---|
| Product Family | PACSystems RX3i |
| Module Category | Analog Input Module |
| Installation Platform | RX3i Universal Rack |
| Signal Conversion | Analog to Digital |
| Mechanical Width | 34 mm |
| Height | 145 mm |
| Depth | 140 mm |
| Weight | Approximately 0.227 kg |
| Communication | RX3i Backplane Bus |
| Isolation | Industrial Grade |
| Diagnostic Features | Module and Channel Diagnostics |
| Operating Mode | Continuous Industrial Operation |
Main Functions
The IC695ALG626 receives analog electrical signals generated by field devices and converts them into digital process values for the PLC.
Typical connected devices include:
- Pressure transmitters
- Temperature transmitters
- Flow meters
- Level transmitters
- Position sensors
- Process analyzers
- Industrial instrumentation
- Monitoring equipment
Signal flow:
Field Instrument
↓
Analog Signal
↓
IC695ALG626
↓
RX3i Backplane
↓
RX3i CPU
↓
PLC Program
↓
HMI / SCADA
↓
Industrial Process
Working Principle
The module continuously samples analog electrical signals from connected field instruments.
The conversion sequence includes:
- Field instrument measures the process variable.
- Transmitter generates an analog electrical signal.
- The analog input channel receives the signal.
- Internal A/D conversion converts the analog value into digital data.
- The RX3i CPU reads the converted value.
- PLC software applies engineering scaling.
- Process values become available for monitoring, alarming, and control.
Accurate measurement depends on proper wiring, configuration, grounding, and signal integrity.
Typical Industrial Applications
The IC695ALG626 is widely used in:
- Power generation
- Water treatment
- Oil & Gas
- Chemical processing
- Pharmaceutical manufacturing
- Food & Beverage
- Steel production
- Mining
- Cement plants
- Pulp & Paper
- Marine automation
- General factory automation
Installation Guide
1. Verify Product Identification
Confirm the module model:
GE IC695ALG626
Verify that the installed module matches the PLC hardware configuration.
2. Confirm System Compatibility
Verify compatibility with:
- RX3i Universal Backplane
- RX3i CPU
- RX3i Power Supply
- Engineering software
- PLC project configuration
3. Inspect the Module
Before installation inspect:
- Housing
- Connector
- Backplane contacts
- Module label
- Terminal connections
- Mechanical condition
Do not install a physically damaged module.
4. Prepare Installation Space
Module dimensions:
- Height: 145 mm
- Width: 34 mm
- Depth: 140 mm
Allow sufficient space for:
- Ventilation
- Wiring
- Future maintenance
- Module replacement
5. Verify Power Isolation
Before installation:
- Stop the PLC system.
- Remove control power.
- Lock out electrical sources.
- Verify zero voltage.
6. Install the Module
Insert the module into the correct RX3i rack slot.
Confirm:
- Proper alignment
- Complete insertion
- Secure locking
- Correct slot assignment
7. Connect Field Wiring
Connect analog field devices according to the approved wiring diagram.
Verify:
- Terminal identification
- Signal polarity
- Shield termination
- Cable routing
- Channel assignment
Separate analog cables from high-voltage or motor power wiring.
8. Grounding
Inspect:
- Cabinet grounding
- Shield grounding
- Signal reference
- Protective earth
Proper grounding minimizes electrical interference and improves measurement stability.
9. Configure the Module
Using the engineering software:
- Add the IC695ALG626 to the hardware configuration.
- Configure input channels.
- Select signal ranges.
- Set engineering units.
- Configure diagnostics and alarms.
10. Power Up and Test
Restore system power and verify:
- Module status LEDs
- CPU communication
- Analog values
- Diagnostic messages
- HMI indications
Commissioning Procedure
Step 1
Download the hardware configuration.
Step 2
Verify module recognition by the RX3i CPU.
Step 3
Confirm communication status.
Step 4
Compare analog readings with calibrated field instruments.
Step 5
Verify engineering scaling and alarm limits.
Step 6
Perform operational testing under normal process conditions.
Troubleshooting Guide
Fault 1 — Module Not Recognized
Possible causes:
- Incorrect rack slot
- Improper insertion
- Hardware configuration mismatch
- Power supply issue
- Backplane communication failure
Fault 2 — No Analog Input Signal
Possible causes:
- Open circuit
- Broken field wiring
- Failed transmitter
- Incorrect configuration
- No transmitter power
Fault 3 — Analog Reading Too High
Inspect:
- Input range
- Signal polarity
- Scaling parameters
- Transmitter calibration
- Wiring
Fault 4 — Analog Reading Too Low
Possible causes:
- Low transmitter output
- Loose wiring
- Incorrect scaling
- Sensor degradation
Fault 5 — Unstable Analog Values
Possible causes:
- Electrical noise
- Poor grounding
- Damaged shield
- Loose terminals
- Nearby variable frequency drives
Fault 6 — Multiple Channel Failure
Inspect:
- Common power supply
- Rack power
- Backplane communication
- PLC diagnostics
- Hardware configuration
Fault 7 — Single Channel Failure
Check:
- Field device
- Wiring
- Terminal connections
- Channel configuration
- Module diagnostics
Fault 8 — Incorrect HMI Display
Possible causes:
- Incorrect PLC scaling
- Wrong engineering units
- HMI tag error
- PLC programming issue
Fault 9 — Communication Error
Inspect:
- RX3i CPU
- Rack backplane
- Power supply
- Module seating
- PLC diagnostics
Fault 10 — Intermittent Signal
Possible causes:
- Loose connector
- Moisture
- Vibration
- Damaged cable
- Electromagnetic interference
Diagnostic Workflow
Recommended troubleshooting sequence:
Field Instrument
↓
Signal Wiring
↓
IC695ALG626
↓
RX3i Backplane
↓
RX3i CPU
↓
PLC Program
↓
HMI / SCADA
↓
Industrial Process
This structured approach helps isolate faults efficiently while minimizing unnecessary module replacement.
Preventive Maintenance
Routine inspections should include:
Mechanical Inspection
- Housing
- Connector
- Module locking
- Rack installation
Wiring Inspection
- Terminal tightness
- Cable insulation
- Shield continuity
- Wire identification
Electrical Inspection
- Power supply
- Grounding
- Shielding
- Cabinet ventilation
Software Inspection
- Hardware configuration
- Diagnostic logs
- Alarm history
- Scaling parameters
Environmental Inspection
- Temperature
- Humidity
- Dust accumulation
- Cabinet cleanliness
- Airflow
Preventive Maintenance Checklist
| Inspection Item | Recommended Action |
|---|---|
| Module Housing | Visual inspection |
| Connector | Inspect contacts |
| Wiring | Tighten terminals |
| Grounding | Verify continuity |
| Shielding | Inspect cable shields |
| Diagnostics | Review module alarms |
| PLC Backup | Archive project |
| Cabinet | Clean and inspect ventilation |
Replacement Procedure
- Record the module slot location.
- Back up the PLC project.
- Remove system power.
- Disconnect field wiring.
- Remove the old module.
- Inspect the rack connector.
- Install the replacement IC695ALG626.
- Reconnect field wiring.
- Restore hardware configuration.
- Apply power.
- Verify communication.
- Check analog values.
- Test alarms and HMI displays.
- Return the system to normal operation.
Advantages
- High-performance analog signal acquisition
- Compact RX3i module design
- Stable and accurate measurements
- Reliable industrial communication
- Comprehensive diagnostics
- Easy integration with RX3i PLC systems
- High resistance to industrial electrical noise
- Simple installation and maintenance
- Long operational service life
- Suitable for critical industrial applications
Frequently Asked Questions
What is the GE IC695ALG626?
The GE IC695ALG626 is an RX3i Analog Input Module used to convert analog signals from industrial field devices into digital data for PACSystems RX3i PLC controllers.
What are the dimensions?
145 × 34 × 140 mm
What is the weight?
Approximately 0.227 kg.
Which PLC platform supports this module?
It is designed for the GE PACSystems RX3i platform.
What is its primary function?
The module acquires analog process signals from field instruments for monitoring, control, and automation applications.
Why are analog readings unstable?
Common causes include poor grounding, electrical interference, damaged signal wiring, loose terminals, incorrect configuration, or transmitter faults.
Why is the module not recognized?
Check module seating, rack compatibility, power supply status, hardware configuration, and backplane communication.
What should be inspected before replacing the module?
Verify field devices, wiring, transmitter power, hardware configuration, rack communication, and diagnostic information before determining that the module requires replacement.
Conclusion
The GE IC695ALG626 RX3i Analog Input Module provides dependable analog signal acquisition for demanding industrial automation systems. Its compact dimensions of 145 × 34 × 140 mm and lightweight 0.227 kg construction make it suitable for high-density RX3i control cabinets while delivering reliable long-term performance.
Proper installation, correct field wiring, accurate hardware configuration, and regular preventive maintenance are essential for ensuring measurement accuracy and system reliability. During troubleshooting, engineers should follow a systematic diagnostic process—from the field instrument through the module, PLC, and HMI—to quickly identify the root cause of faults and minimize unnecessary downtime.