GE IC694ALG222 PACSystems RX3i Analog Voltage Input Module

Description

Hardware & Electrical Specifications

‑ Model：IC694ALG222 ‑ Part Number：IC694ALG222 ‑ Module Type：RX3i / 90‑30 Analog Voltage Input Module ‑ Mounting：Plug‑in any slot of RX3i universal backplane / Series‑90‑30 base or expansion rack ‑ Backplane power：5 VDC @112 mA drawn from rack backplane ‑ External isolated power：24 VDC, typical 110 mA (new‑revision hardware) ‑ Channel configuration：  • Single‑ended：16 channels, voltage input  • Differential：8 channels, voltage input ‑ Input signal range (per‑channel configurable)：0‑10 V DC, ‑10 ~ +10 V DC ‑ A/D resolution：12‑bit ‑ Conversion update rate：  • 16‑channel single‑ended：6 ms full‑scan  • 8‑channel differential：3 ms full‑scan ‑ Input impedance：＞1 MΩ ‑ Diagnostics：Over‑range, under‑range detection; module hardware self‑diagnosis ‑ Isolation：Field‑to‑logic backplane 250 VAC continuous withstand; no channel‑to‑channel isolation ‑ Termination：Requires separate 36‑pin terminal block IC694TBB032 / IC694TBS032 ‑ PCB treatment：Conformal coated for dust‑moisture‑corrosion resistance ‑ Compatibility note：Cannot run standalone; external isolated 24VDC must be supplied; differential mode improves anti‑interference for long‑signal‑wire; full analog‑loop simulation test mandatory after replacement。

Environmental Specifications

‑ Operating temperature：0 ℃ ~ +60 ℃ ‑ Storage temperature：‑40 ℃ ~ +85 ℃ ‑ Relative humidity：5%‑95% non‑condensing ‑ Installation location：Indoor industrial control cabinet, IP20 ‑ EMC compliance：IEC 61000‑6‑2 ‑ Certifications：CE, UL Class I Div 2 hazardous‑location certification

Mechanical Data

‑ Weight：approx 0.28 kg ‑ Dimension：RX3i single‑slot module form‑factor ‑ Handling note：ESD‑sensitive analog measuring circuit; analog signal must use shielded twisted‑pair cable; strictly distinguish single‑ended / differential wiring

Main Functions

1. Collect field voltage analog signals from pressure, displacement, potentiometer‑type sensors, convert analog voltage into digital value for PLC CPU processing.
2. Two wiring modes optional: single‑ended for multi‑point short‑distance acquisition; differential mode for long‑distance site with strong electromagnetic interference.
3. Channel‑level diagnosis: judge signal over‑range / under‑range fault, upload alarm status to PLC register.
4. Real‑time data exchange with CPU via backplane bus, transmit converted analog register values.
5. LED status indication on front panel:   ‑ Green P/S OK：Module internal 5V power supply normal   ‑ Green MODULE OK：Module hardware & configuration normal; flashing indicates configuration error / fault

Installation & Wiring Requirements

1. Cut off PLC rack power and external isolated 24VDC power before replacement. Hot‑swap is forbidden. Strict anti‑static protection when handling module.
2. Insert IC694ALG222 fully into backplane slot and lock latch; install matched terminal block IC694TBB032 / IC694TBS032.
3. Analog signal wiring must adopt shielded twisted‑pair; separate analog signal cable from high‑power power cable; cable shield single‑end grounding; strictly follow single‑ended / differential wiring definition of manual.
4. External isolated 24VDC power supply wiring comply with GE hardware manual, add external fuse protection.
5. After replacement：power‑on rack and isolated 24VDC; verify P/S OK and MODULE OK LED status; download hardware configuration; perform full‑channel signal input simulation test.
6. Replacement note: Pay attention to new‑revision higher 24VDC current consumption; correctly select single‑ended / differential mode according to field site; full‑system commissioning test mandatory before unit put‑into‑service。