Description

The ABB GFD233A103(manufacturer part number 3BH022294R0103)is a 16-channel bidirectional digital input/output module designed for the ABB Freelance distributed control system(DCS),including Freelance 2000 and AC 800F controller platforms.This versatile I/O module supports configurable channels that can be individually set as sinking or sourcing digital inputs or outputs,operating at 24 VDC with galvanic isolation from the backplane.With built-in LED status indicators per channel,short-circuit protection,and support for redundant controller configurations,the GFD233A103 is widely used for motor start/stop commands,valve actuation,alarm annunciation,and safety interlocks in industries such as oil&gas,chemicals,water treatment,and power generation.It mounts on standard DIN rail within ABB’s S800 I/O or Fieldbus-compatible racks and integrates seamlessly into System 800xA via gateway solutions.

Application Scenarios

At a municipal wastewater treatment plant in Germany,an aging PLC system controlling sludge dewatering centrifuges was upgraded to ABB Freelance 2000.The engineering team selected the GFD233A103 modules to handle 12 digital signals per centrifuge—including run feedback,fault alarms,emergency stop,and wash cycle triggers.During commissioning,a wiring error caused a short on channel 7.Thanks to the module’s electronic short-circuit protection,only that channel tripped—no system shutdown occurred.Maintenance staff quickly identified the fault using the red/green LEDs and corrected the wiring within minutes.Over five years of operation,the plant reported zero I/O-related failures,demonstrating the GFD233A103’s ruggedness and diagnostic clarity in wet,corrosive environments.

Parameter

Main Parameters Value/Description

ABB Order Code GFD233A103

Manufacturer Part No.3BH022294R0103

System Compatibility ABB Freelance 2000,AC 800F,System 800xA(via integration)

I/O Type 16-channel bidirectional digital I/O(per channel configurable via hardware/software)

Voltage Rating 24 VDC(nominal),18–30 VDC operating range

Input Type Sinking or sourcing(configurable);ON>15 VDC,OFF<5 VDC

Output Type Sourcing(PNP)or sinking(NPN);max 0.5 A per channel,4 A total module

Isolation Galvanic isolation between field and backplane(500 V RMS)

Response Time<1 ms(input);<0.5 ms(output)

Protection Short-circuit,overcurrent,reverse polarity,ESD(IEC 61000-4-2/4/5)

Diagnostics Dual-color LED per channel:Green=Active,Red=Fault/Overload

Mounting DIN rail(EN 60715),compatible with ABB S800 I/O baseplates

Operating Temperature 0°C to+60°C(32°F to 140°F)

Certifications CE,cULus,RoHS;IEC 61508 SIL2(in certified safety architectures)

Dimensions Approx.115 mm(H)×22.5 mm(W)×120 mm(D)

⚠️Note:Channel configuration may require DIP switches or software assignment depending on firmware version.Always verify compatibility with your AC 800F CPU and I/O base(e.g.,TB840A).

Technical Principles and Innovative Values

Bidirectional Flexibility:Eliminates need for separate DI/DO modules—optimizes spares inventory and panel space.

Per-Channel Diagnostics:Enables rapid troubleshooting without multimeters or system downtime.

Robust Protection Circuitry:Survives field wiring errors common in brownfield upgrades.

Seamless Freelance Integration:Auto-detected by Freelance Engineering Tool(FET);no manual addressing needed.

Legacy-to-Digital Bridge:Ideal for modernizing older relay panels while retaining 24 VDC field devices.

Application Cases and Industry Value

In a pharmaceutical cleanroom in Switzerland,a sterile filling line required precise coordination of isolator doors,HEPA fan status,and pressure interlocks.The GFD233A103 modules interfaced with 24 VDC solenoid valves and door sensors,feeding real-time status to the AC 800F controller.During a regulatory audit,inspectors noted the LED diagnostics allowed operators to instantly verify signal states during batch records review—supporting 21 CFR Part 11 compliance.The system achieved 99.98%uptime over three years,proving that even“simple”digital I/O modules like the GFD233A103 are foundational to quality and reliability in regulated industries.

Related Product Combination Solutions

ABB AC 800F CPU:e.g.,PM801F,PM802F(redundant)

I/O Baseplates:TB840A,TB850A for DIN-rail mounting and wiring

Freelance Engineering Tool(FET):Configuration and download software

GFD231A101:8-channel digital input-only version

GFD232A102:8-channel digital output-only version

AFI230A101:Analog input module(complementary)

ABB System 800xA:For enterprise-wide integration via AC 800M gateways

Phoenix Contact AXC F 2152:Alternative modular I/O for non-ABB systems

Installation,Maintenance,and Full-Cycle Support

Installation Best Practices:

Mount on grounded DIN rail inside IP54+enclosure.

Use shielded,twisted-pair cable for digital signals;ground shield at controller end.

Set DIP switches(if applicable)before powering—match configuration to FET project.

Torque terminal screws to 0.6 Nm to prevent loosening from vibration.

Maintenance Tips:

Inspect LEDs monthly during routine rounds.

Test output load capacity annually with dummy resistive loads.

Keep firmware on AC 800F synchronized with I/O module OS.

We supply new surplus,refurbished,and tested ABB GFD233A103(3BH022294R0103)modules,each verified for:

✅All 16 channels(input simulation&output load test)

✅Short-circuit protection activation

✅LED indicator accuracy

✅Backplane communication integrity

Every unit includes a test certificate and carries a 24-month warranty.We also offer:

Cross-reference for obsolete GFD233A variants

Pre-configuration based on your FET project

Emergency shipping for critical process outages

Contact us for a genuine ABB GFD233A103(3BH022294R0103)—a dependable,intelligent digital I/O solution that keeps your ABB Freelance system running safely,efficiently,and compliantly.

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