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3. Key Technical Specifications
- Output Points: 32 (4 groups of 8)
- Output Voltage: 24/48 VDC
- Output Current: 0.5 A per point, 2 A per group maximum
- Output Type: Positive logic
- Isolation: Group isolated
- Backplane Current: Approx. 0.3 A at 5 VDC
- Operating Temperature: 0 to 60°C
- Status Indicators: LEDs for each output point
- Response Time: Fast switching
- Protection: Overcurrent and short circuit in many configurations
4. Product Introduction
The GE IC697MDL750H is a 32-point digital output module for the Series 90-70 PLC. It provides four isolated groups of eight 24/48 VDC outputs rated at 0.5 A per point.
This module drives solenoids, relays, and other DC loads in industrial control systems. It is a standard high-density output solution for Series 90-70 racks.
- IC697MDL750H
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Outputs not turning on | No field power or blown fuse | ✅ High | Measure voltage at output common terminals | Verify field 24/48 VDC supply |
| Outputs stay on | Shorted output or wiring fault | ✅ High | Disconnect load and test with multimeter | Check wiring and loads for shorts |
| No LEDs on module | Module not powered | ✅ High | Check backplane power and module seating | Reseat module and verify rack power |
| Intermittent outputs | Loose terminal connections | ✅ High | Inspect screw terminals | Tighten all field wiring |
| Overheating | Excessive current draw | ✅ Medium | Measure actual current per point | Reduce load or add external relays |
Contact technical support with module LED status, field voltage measurements, and wiring photos if issues continue.
6. Frequently Asked Questions (FAQ)
What is the current rating per output on the IC697MDL750H? Each point is rated for 0.5 A continuous with a 2 A maximum per group of eight points.
Are the outputs isolated? Yes, in four groups of eight points each. This helps reduce common mode issues between groups.
Can I use this module with 24 VDC or 48 VDC? Yes. It is designed for both 24 VDC and 48 VDC positive logic applications.
Is this module hot-swappable? No. Remove power from the rack before installing or removing output modules to avoid damage.
What is the H suffix on IC697MDL750H? It denotes a specific hardware revision. The module maintains full functional compatibility with earlier versions.
Why purchase New Surplus for this output module? These are genuine OEM units from excess inventory. They are tested and ready for immediate use in maintaining or expanding legacy Series 90-70 systems at a lower cost.
What should I document before replacement? Photograph the existing wiring and terminal assignments. Note any external fusing and take a backup of your PLC program before swapping the module.
