GE IC694MDL753 PACSystems RX3i 32‑Point 12/24VDC Sourcing Discrete Output Module

Description

Hardware & Electrical Specifications

‑ Model：IC694MDL753 ‑ Part Number：IC694MDL753 ‑ Module Type：RX3i 32‑Point 12/24VDC Sourcing (Positive Logic) Output Module ‑ Mounting：Plug‑in any slot on RX3i universal backplane, main rack or expansion rack ‑ Backplane power：5 VDC @260 mA drawn from rack backplane ‑ Field load power：External 10.2‑28.8 VDC (nominal 12‑24VDC) supplied by user power supply ‑ Output capacity：  • Per‑channel max resistive current：0.5 A  • Per‑group maximum total current：4 A  • Output type：Sourcing / positive logic, module outputs positive voltage to load ‑ Response time：Turn‑ON / Turn‑OFF ≤1ms typical ‑ Isolation：  • Field‑to‑logic backplane：Optocoupler isolation, 1500 VAC 1‑minute withstand  • Group‑to‑group isolation：500 VAC; no isolation between channels inside same group ‑ Terminal：Requires separate 36‑pin terminal block IC694TBB032 / IC694TBS032 ‑ Diagnostics：Module self‑diagnosis; no built‑in per‑channel short‑circuit detection; all outputs forced OFF at CPU STOP mode ‑ PCB treatment：Conformal coated for dust‑moisture‑corrosion resistance ‑ Compatibility note：Cannot run standalone; external field DC power must be provided; inductive loads need free‑wheel diode absorption; full discrete‑output 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 0.25 kg ‑ Dimension：RX3i single‑slot module form‑factor ‑ Handling note：ESD‑sensitive output drive circuit; inductive loads must add absorption components; pay attention to per‑group 4A total‑current limit; use both common pins for high‑current group connection

Main Functions

1. 32‑point sourcing DC output, drive field solenoid valves, DC contactor coils, indicator lamps and other 12/24VDC field actuators.
2. Four independent groups, each group can adopt different supply voltage, flexible for mixed‑voltage field equipment.
3. Receives output data from RX3i CPU via backplane bus, controls ON/OFF status of each channel. When CPU enters STOP state, all outputs turn off for safety.
4. LED status indication on front panel:   ‑ Green P/S OK：Module 5V backplane power supply normal   ‑ Green MODULE OK：Module hardware & configuration normal   ‑ 32 individual green channel LED：Real‑time status indicator for each output channel

Installation & Wiring Requirements

1. Cut off PLC rack power and external field 12/24VDC load power before replacement. Hot‑swap is forbidden. Strict anti‑static protection when handling module.
2. Insert IC694MDL753 fully into backplane slot and lock latch; install matched terminal block.
3. Field wiring strictly follow GE RX3i hardware manual; for inductive coil loads, parallel free‑wheel diode absorption circuit; add external fuse for each output group; separate output signal cables from high‑power cables, reliable protective‑ground connection.
4. After replacement：power‑on rack and field DC power; verify P/S OK、MODULE OK and channel LED status; download hardware configuration; perform full‑channel output trigger test.
5. Replacement note: Strictly control each group total current ≤4A; high‑current group must connect both common pins on terminal block; no channel short‑circuit alarm on module side, external fuse protection is essential; full‑system commissioning test mandatory before unit put‑into‑service。