GE IC693ALG221J 4-Channel Analog Current Input Module

Description

Technical Specifications

• Manufacturer: GE Fanuc / Emerson Automation
• Part Number: IC693ALG221J
• Product Type: Analog Current Input Module
• Compatible System: GE Series 90‑30 PLC (all CPU models), PACSystems RX3i/RX7i (via expansion)
• Number of Channels: 4 independent, isolated input channels
• Input Signal Ranges:
  • Default: 4–20 mA (field to digital: 4 mA = 0 counts, 20 mA = 32000 counts)
  • Configurable: 0–20 mA (via jumper settings on terminal board)
• Resolution: 12‑bit ADC (4096 steps)
  • 4–20 mA range: 4 µA per LSB
  • 0–20 mA range: 5 µA per LSB
• Conversion Speed: 0.5 ms per channel (2 ms total update for all 4 channels)
• Accuracy: ±0.1% full scale ±0.1% reading (at 25°C)
• Linearity: < 1 LSB
• Input Filter: 325 Hz low‑pass filter (noise suppression)
• Isolation:
  • Field side to logic side: 1500 VAC RMS for 1 minute
  • Common‑mode voltage: 200 VAC continuous
• Power Consumption:
  • +5 VDC (backplane): 120 mA max
  • +24 VDC (field): 40 mA max (for sensor excitation)
• LED Indicators: PWR (Power), CH1–CH4 (Channel Status)
• Operating Temperature: 0°C to +55°C (32°F to 131°F)
• Storage Temperature: ‑40°C to +85°C (‑40°F to 185°F)
• Humidity: 5%–95% RH, non‑condensing
• Shock/Vibration: 5 G (operating), 10 G (storage)
• Mounting: Standard DIN rail or panel mount
• Dimensions: 140 mm × 122 mm × 50 mm (5.5” × 4.8” × 2.0”)
• Weight: 0.48 kg (1.06 lbs)
• Certifications: CE, UL, CSA, RoHS (J‑revision compliant)

Key Features

1. Flexible Current Input Ranges & Scaling

• Dual‑range support: Default 4–20 mA (industry standard for 2‑wire transmitters); switchable to 0–20 mA via on‑board jumpers (two jumper banks: channels 1–2 and 3–4).
• 16‑bit data format: Converted values stored in PLC %AI registers as 16‑bit 2’s complement integers (0–32000), simplifying scaling in user logic.
• Fail‑safe detection: 4–20 mA range detects open circuits (<3.8 mA)** and **over‑range (>20.5 mA), triggering PLC alarms for diagnostic action.

2. High Accuracy & Noise Immunity

• 12‑bit resolution: Delivers precise measurement for pressure, temperature, flow, and level sensors.
• Low filter latency: 325 Hz low‑pass filter balances noise rejection and fast response for dynamic process signals.
• Galvanic isolation: 1500 VAC isolation between field wiring and PLC logic eliminates ground loops and protects against voltage spikes from motors or drives.

3. High‑Speed Sampling & Update

• 0.5 ms per channel: Rapid analog‑to‑digital conversion ensures real‑time data for closed‑loop control (e.g., PID loops).
• 2 ms total update: All four channels updated within 2 ms, supporting fast‑changing process variables in manufacturing and power applications.

4. Rugged Industrial Construction

• Conformal coating: Protects PCBs against moisture, dust, and corrosive gases in harsh environments.
• Wide temperature range: Operates reliably from 0°C to +55°C, suitable for control rooms and outdoor field enclosures.
• LED diagnostics: Clear PWR and CH1–CH4 LEDs enable instant visual status checks for power and channel activity.

5. Easy Installation & Maintenance

• DIN‑rail mount: Compact, lightweight design fits standard industrial cabinets, reducing installation time.
• Hot‑swap compatible: Replace modules without shutting down the entire PLC system (with compatible base units).
• Jumper‑configurable ranges: Simple jumper settings on the terminal board allow quick range changes without programming.

Applications

• Process Industries: Chemical, petrochemical, and pharmaceutical plants for monitoring pressure, temperature, flow, and level in reactors, pipelines, and storage tanks.
• Power Generation: Fossil, hydro, and renewable power facilities for boiler drum level, turbine vibration, and exhaust gas temperature monitoring.
• Oil & Gas: Refineries, pipelines, and offshore platforms for pipeline pressure, flow rate, and tank level measurement and safety shutdown systems.
• Water & Wastewater: Treatment plants for pH, dissolved oxygen, turbidity, and pump discharge pressure monitoring.
• Manufacturing: Automotive, food/beverage, and packaging lines for machine speed, conveyor tension, and product temperature control.