Product Short Description
The GE IC693ALG221 is a high-performance 4-channel analog current input module designed for the GE Fanuc Series 90-30 PLC system. It converts analog current signals from field devices such as transmitters, sensors, and transducers into 16-bit digital values for processing by the PLC CPU. The module supports two industry-standard current ranges (4–20mA default, 0–20mA configurable) and provides high accuracy, noise rejection, and electrical isolation for reliable operation in industrial environments. It integrates directly into the Series 90-30 backplane, enabling seamless data exchange and configuration via PLC programming software.
Description
Technical Specifications
- Manufacturer: General Electric (GE Fanuc / Emerson Automation Solutions)
- Series: Series 90-30 PLC System
- Model: IC693ALG221
- Module Type: Analog Current Input Module
- Number of Channels: 4 independent single-ended inputs
- Input Ranges:
- Default: 4–20mA
- Configurable: 0–20mA (via on-board jumpers)
- Resolution: 12-bit (4096 steps)
- Digital Scaling:
- 4–20mA: 4mA = 0 counts; 20mA = 32,000 counts
- 0–20mA: 0mA = 0 counts; 20mA = 32,000 counts
- Absolute Accuracy: ±0.1% full scale ±0.1% reading
- Linearity: <1 Least Significant Bit (LSB)
- Input Impedance: 250Ω per channel
- Update Rate: 2ms for all 4 channels (0.5ms per channel)
- Input Filter: 325Hz low-pass filter
- Isolation: 1,500Vrms between field and logic sides
- Common Mode Voltage: 200V
- Common Mode Rejection: >70dB (DC to 60Hz)
- Cross-Channel Rejection: >80dB (DC to 1kHz)
- Power Consumption:
- +5V Backplane: 25mA
- +24V External: 100mA
- Operating Temperature: 0°C to +55°C (32°F to 131°F)
- Storage Temperature: -40°C to +85°C (-40°F to 185°F)
- Relative Humidity: 5%–95%, non-condensing
- Dimensions (H×W×D): 102mm × 86.1mm × 58.5mm (4.02in × 3.39in × 2.3in)
- Weight: 0.24kg (0.53lbs)
- Certifications: CE, UL 508, CSA C22.2 No. 142
Key Features
- Dual Current Range Support: Default 4–20mA (industry standard for live zero) and jumper-selectable 0–20mA for flexibility with various sensors.
- High Resolution & Accuracy: 12-bit resolution with ±0.1% full-scale accuracy ensures precise measurement of process variables.
- Fast Conversion Speed: 2ms total update rate enables real-time monitoring of dynamic processes.
- Strong Noise Rejection: 325Hz low-pass filter and high common-mode rejection eliminate electrical interference in harsh industrial environments.
- Electrical Isolation: 1,500Vrms isolation protects the PLC from field-side voltage spikes and ground loops.
- On-Board Configuration: Two jumpers allow independent range selection for channels 1–2 and 3–4.
- LED Status Indicator: Power LED provides visual confirmation of module operation.
- Compact & Rugged Design: Durable plastic housing with IP20 protection suits cabinet mounting in industrial facilities.
- Seamless System Integration: Direct plug-in to Series 90-30 backplane; compatible with all Series 90-30 CPUs and programming software.
- Field-Proven Reliability: Designed for 24/7 operation in manufacturing, process control, and building automation applications.
Applications
- Process Control: Chemical, water treatment, pharmaceutical, and food & beverage plants monitoring flow, pressure, temperature, and level via 4–20mA transmitters.
- Factory Automation: Automotive assembly lines, packaging machinery, and metalworking equipment using current-output sensors for position, speed, and force measurement.
- Building Automation: HVAC systems monitoring duct pressure, air flow, and temperature; energy management systems tracking power consumption.
- Power Generation: Thermal and renewable power plants monitoring boiler parameters, turbine sensors, and generator auxiliaries.
- Oil & Gas: Refineries, pipelines, and onshore facilities measuring pressure, level, and flow in hazardous (non-Ex) areas.
- Legacy System Upgrades: Replacement or expansion of existing Series 90-30 I/O systems to maintain compatibility with installed control infrastructure.
Compatibility
- PLC Series: GE Fanuc Series 90-30 (CPU311, CPU313, CPU321, CPU323, CPU331, CPU341, CPU351, CPU364, CPU374)
- Programming Software: Proficy Machine Edition (PME), Logicmaster 90-30
- Related Modules: IC693ALG220 (voltage input), IC693ALG223 (high-density current input)






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