GE IC670ALG230 8‑Channel Current‑Source Analog Input Module

Description

Technical Specifications

• Module Type: 8‑channel single‑ended current‑source analog input module (Field Control Series).
• Input Signal: Software‑configurable per channel: 0‑20 mA, 4‑20 mA current.
• Digital Resolution: 12 bits.
• Analog Resolution: 5.0 µA.
• Input Current Range: 0.1 mA min, 20 mA max; 30 mA absolute max.
• Over‑range Fault: 20.000–20.500 mA (fault indication).
• Open‑Wire Detection: 2.0 mA typical (4‑20 mA range only).
• Input Impedance: 2.87 kΩ.
• Conversion Time: 60 µs per channel (1 MHz module clock).
• Input Filter: 1st‑order RC, 160 Hz typical cutoff.
• Isolation: 1500 VAC (1 minute) between field/backplane; 250 VAC continuous to case.
• Power Supply: 24 VDC ±10% (21.6–26.4 VDC), 25 mA max module current.
• Indicators: Module power, backplane communication, and per‑channel status LEDs.
• Terminals: Removable screw‑clamp terminal block, 2.5 mm² max wire gauge.
• Dimensions: 135 mm × 66 mm × 30 mm; weight 230 g.
• Operating Environment: 0°C to +60°C; 5–95% RH (non‑condensing); IP20 protection.
• Certifications: CE, UL 508, CSA C22.2 No. 14; IEC 61131‑2 compliant.

Functional Characteristics

• 8 Configurable Channels: Per‑channel software selection of 0‑20 mA/4‑20 mA adapts to pressure, flow, temperature transmitters.
• High Resolution & Speed: 12‑bit digital/5.0 µA analog resolution; 60 µs conversion time enables real‑time process monitoring.
• Built‑in Diagnostics: Open‑wire (4‑20 mA) and over‑range fault detection prevent false data; LEDs enable quick troubleshooting.
• 160 Hz Input Filter: Reduces noise from VFDs, motors, and power lines for stable measurements.
• 1500 VAC Isolation: Protects backplane/CPU from field‑side surges, ground loops, and high‑voltage transients.
• BIU‑Based Scaling: Unscaled raw data sent to BIU for host CPU scaling; preserves precision in signal conversion.
• Compact & Lightweight: 230 g, DIN rail mounting fits dense panels; hot swappable with Series 90‑30 chassis.
• Global Power Compatibility: 24 VDC ±10% input works with standard industrial power supplies.
• Certified for Industrial Use: CE/UL/CSA compliance ensures safety in heavy industrial environments.

Application Scenarios

• Process Control: Chemical, oil/gas, water treatment; 8 channels acquire 4‑20 mA from flow/pressure/temperature transmitters, 12‑bit resolution ensures precise control valve actuation.
• Machine Monitoring: Motors, pumps, compressors; 0‑20 mA input tracks current draw, 60 µs conversion time triggers overload alarms fast.
• HVAC & Building Automation: Chiller, boiler, air handler control; 8 channels monitor 4‑20 mA from temperature/humidity transmitters, BIU scaling integrates with BMS via Modbus.
• Manufacturing Automation: Assembly lines, test stands; 4‑20 mA input from load cells/pressure sensors, open‑wire detection prevents unplanned downtime.
• Energy Management: Solar inverters, UPS systems; 8 channels measure 0‑20 mA current for power metering, 1500 VAC isolation protects SCADA systems.
• Legacy System Retrofit: Upgrades Series 90‑30 PLCs with 8‑channel current input expansion; preserves existing 4‑20 mA transmitter infrastructure.
• Remote I/O Racks: Distributed process monitoring; 24 VDC power and 230 g weight suit remote cabinets, BIU enables central data aggregation via backplane.