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

by fanuc

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4-ch current input, ranges 4–20 mA (default) or 0–20 mA; 2 ms update (all ch); resolution 4 µA/LSB (4–20 mA), 5 µA/LSB (0–20 mA); 250 Ω input; draws 25 mA @ +5 V and 100 mA @ +24 V (iso).

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Product Description

The IC693ALG221 is a four-channel current input module for Series 90-30 systems. It supports 4–20 mA (default) and 0–20 mA ranges selected via terminal-board jumpers, with a fast 2 ms update for all channels. Resolution is 4 µA/LSB in 4–20 mA mode and 5 µA/LSB in 0–20 mA mode; input impedance is 250 Ω. Isolation is provided between field and logic, and typical internal consumption is ~25 mA from +5 V and ~100 mA from isolated +24 V. Many sites scale user data to 16-bit counts (e.g., 0–32000 span) for easy engineering-unit conversion—confirm your application’s scaling in Proficy.

Technical Specifications

Brand / Series	GE Fanuc — Series 90-30
Model	IC693ALG221
Channels	4 analog current inputs
Input Ranges	4–20 mA (default); 0–20 mA (jumper)
Update Rate	2 ms (all channels)
Resolution	4 µA/LSB @ 4–20 mA; 5 µA/LSB @ 0–20 mA
Input Impedance	250 Ω
Input Filter Response	≈ 325 Hz
Isolation	≈1500 V field-to-logic; CMR >70 dB (DC/60 Hz)
Backplane Load	≈25 mA @ +5 V; ≈100 mA @ +24 V (isolated)
Data / Scaling	Typical 16-bit user data mapping; confirm in project

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Frequent asked questions

How do I select 4–20 mA vs 0–20 mA?

Use the terminal-board jumper per the manual; default is 4–20 mA.

What’s the conversion speed and resolution?

2 ms update (all four channels). Resolution 4 µA/LSB (4–20 mA) or 5 µA/LSB (0–20 mA).

What power does the module draw?

About 25 mA @ +5 V and 100 mA @ +24 V (isolated) from the backplane