GE Fanuc | IC693ALG221 Series 90-30 | 4-Channel Analog Input Module

Overview

The IC693ALG221 by GE Fanuc is a 4-channel analog current input module for Series 90-30 PLCs that accurately processes 4–20 mA and 0–20 mA signals, provides high-resolution measurements, electrical isolation between field and logic circuits, and fast update rates suitable for precise industrial control applications.

Technical Specifications

• Manufacturer: GE Fanuc Emerson

• Model / Part Number: IC693ALG221

• Product Type: Analog Input Module

• Series: Series 90-30

• Weight: 0.69 lbs (0.31 kg)

• Number of Input Channels: 4

• Supported Input Ranges: 4–20 mA, 0–20 mA

• Resolution:

• 4–20 mA: 4 μA per step

• 0–20 mA: 5 μA per step

• Accuracy: ±0.1% full scale

• Update Rate: 2 ms for all channels

• Input Impedance: 250 Ω

• Electrical Isolation: 1500 V RMS (field-to-logic)

• Filter Response: 325 Hz

• Default Input Range: 4–20 mA

• Power Consumption:

• 25 mA at 5 VDC

• 100 mA at 24 VDC

• Analog-to-Digital Conversion: Internal ADC scales 4–20 mA signals to 0–32000 (0 = 4 mA, 32000 = 20 mA)

• Linearity: Less than 1 LSB

• Common Mode Voltage: 200 V

• Configuration: Hardware-configured input range via terminal block jumpers

• Power Source: Isolated +24 VDC supplied by PLC

• Mounting / Compatibility: Compatible with standard Series 90-30 I/O racks

Applications

• High-precision analog signal acquisition for Series 90-30 PLC systems

• Real-time monitoring and control of sensors with 4–20 mA or 0–20 mA outputs

• Integration in modular PLC racks requiring fast update rates and electrical isolation

FAQ

Q: Can the module handle both 4–20 mA and 0–20 mA signals simultaneously?
A: The IC693ALG221 supports either 4–20 mA or 0–20 mA input per channel, configured via terminal block jumpers.

Q: What is the update rate for all channels?
A: All four channels are updated every 2 ms, providing rapid response for control loops.