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Phone: +86 16626708626Description
Product Core Brief
- Model: IC693CHS391L
- Brand: GE Fanuc / Emerson
- Series: Series 90-30
- Core Function: 10-slot CPU expansion baseplate
- Product Type: PLC rack chassis
- Key Specs: 420 mA at 5 VDC, 9 I/O slots + CPU slot
- Condition: New
Key Technical Specifications
- Slots: 10 total (1 CPU slot, 9 I/O or option slots)
- Power draw: 420 mA at 5 VDC from backplane
- Expansion connector: 25-pin D-type female
- Dimensions: 17.44 in x 5.59 in x 0.42 in (443 x 142 x 11 mm)
- Weight: 6 lbs (2.7 kg)
- Operating temperature: 0°C to 60°C
- Backplane voltage: +5 VDC bus
- Rack addressing: Defaults to rack 0
- Mounting: Panel mount, horizontal only
- Internal power: 20 mA at 5 VDC base
- IC693CHS391L
Product Introduction
GE IC693CHS391L is a 10-slot modular CPU baseplate for Series 90-30 PLC systems. Slot 1 takes the CPU or FIP scanner; slots 2-10 hold I/O and option modules. Right-end 25-pin port links to expansion or remote racks.
Houses power supply on left, supports modular CPU swaps for upgrades. Field installs run stable in 24/7 plants—add it to scale from 5-slot mains without rewiring. Match slot count to your I/O needs first.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No backplane power to modules | Faulty interlock or expansion cable | ✅ High | Measure +5 VDC across pins 1-2 on CPU slot with Fluke 87 | Reseat power supply; test continuity on 25-pin cable <0.5 Ω |
| CPU won’t recognize rack slots | Wrong rack address or bad connector | ✅ Medium | Logicmate shows rack 0 only; check DIP on CPU | Power cycle; jumper expansion port if single rack |
| Slot 3+ modules dark, no OK LED | Backplane trace open from vibration | ✅ High | Probe +5 V pin-to-pin across slots (should be 0 Ω) | Tighten rack screws to 15 in-lbs; replace if >1 Ω drop |
| Expansion rack drops offline | 25-pin cable damage or length >50 ft | ❌ Low | Ping continuity on all 25 pins; visual jacket cracks | Shorten cable or add repeater; ferrule ends properly |
| Overheat in crowded rack | Poor airflow around baseplate | ✅ Low | IR gun >55°C on metal; check dust buildup | Add 2 in clearance top/bottom; vacuum fins yearly |
Photo the rack layout before changes. Baseplates fail from abuse, not age—check power first always. Send diagnostic dumps if no joy
Frequently Asked Questions (FAQ)
Can I mix 5-slot and 10-slot baseplates in one system?
Yes, chain via 25-pin cables up to 7 racks total. Set addresses via CPU software—rack 0 is always the CPU plate.
Condition details?
New Surplus: OEM overstock, checked for bent pins and backplane shorts. No run hours; torque-tested mounts. Full photos on request.
Does it need a separate power supply?
No—the left slot takes standard IC693 PSU. Draws 420 mA base; calc 20% headroom for full I/O load.
Hot-swappable or live expansion?
No. Kill power rack-wide. Live adds spike the +5 V bus. I’ve reset whole lines from that shortcut.
❗ Biggest install gotcha?
❗ Slot 1 is CPU-only—don’t jam I/O there. It won’t latch, and forcing bends traces. Label your racks. Wastes hours every time.
Warranty and stock?
1-year functional. Ships same day post-QC continuity test. Zero lead time from stock.
Upgrades from IC693CHS390?
Direct swap—same footprint, but 391 adds better EMI shielding on backplane. Pin-compatible
