IC697CHS770D
Description
1. General Description
1.1 Product Overview
1.2 Key Features
Dual‑Redundant Architecture: Two independent backplane segments (6 slots each) for 1+1 CPU redundancy and redundant power supplies.
High Slot Density: 12 total backplane slots + 2 dedicated power supply slots.
VME Compatibility: Accepts GE Fanuc IC697 PLC modules and third‑party VME modules with 0.8” spacing.
Hot‑Swap Support: Backplane with hot‑swap detection circuitry for online module replacement (I/O and communication modules).
Integrated Power Buses: Separate +5 VDC logic and +24 VDC I/O power rails with overvoltage/overcurrent protection.
Robust Construction: All‑metal shielding, conformal‑coated PCB, and industrial‑grade connectors for harsh environments.
Seamless Redundancy: Supports <5 ms automatic failover between primary and secondary CPUs with data mirroring.
2. Technical Specifications
2.1 Mechanical
| Parameter | Specification |
|---|---|
| Model | IC697CHS770D |
| Type | Dual‑redundant rear‑mount rack |
| Form Factor | 3U, 19” standard rack mount |
| Depth | 10” (254 mm) housing; front panel for 19” frame |
| Slot Configuration | 2 power slots + 12 backplane slots (2 × 6‑slot segments) |
| Module Spacing | 0.8” (20.3 mm) between slots |
| Weight | Approx. 2.5 kg (5.5 lb) |
| Dimensions (H×W×D) | 130 mm × 483 mm × 254 mm (5.1” × 19” × 10”) |
2.2 Electrical (Backplane)
| Parameter | Specification |
|---|---|
| Logic Power | +5 VDC, up to 10 A per segment |
| I/O Power | +24 VDC, up to 6 A per segment |
| Redundancy | Dual independent power domains; isolated primary/secondary buses |
| Bus Interface | VMEbus‑compatible, 32‑bit data/address |
| Hot‑Swap | Backplane‑integrated detection and isolation circuitry |
2.3 Environmental
| Parameter | Specification |
|---|---|
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | −40°C to +85°C |
| Relative Humidity | 5%–95% (non‑condensing) |
| Altitude | Up to 2000 m (derate above 1000 m) |
| Protection Class | IP20 (front) |
| Certifications | CE, UL, CSA, RoHS compliant |
3. Front & Rear Panel Layout
3.1 Rear Panel (Backplane Slots)
Slots P1 & P2: Dedicated power supply slots (e.g., IC697PWR711, IC697PWR724).
Slots 1–6: Primary segment (CPU, I/O, communication modules).
Slots 7–12: Secondary segment (redundant CPU, I/O, communication modules).
3.2 Front Panel
Module Ejectors: Tool‑less insertion/removal with positive‑lock connectors.
LED Indicators (per segment):
PWR: ON = Backplane power active.
OK: ON = No faults; backplane operational.
REDUND: ON = Redundancy active; blinking = failover in progress.
4. Installation Instructions
4.1 Rack Mounting
Unpack & Inspect: Verify no physical damage; check all connectors and ejectors.
Rack Preparation: Mount the rack in a standard 19” industrial cabinet; ensure ≥50 mm ventilation clearance top/bottom/side.
Secure the Rack: Use four M6 screws (torque: 1.2–1.5 N·m) to fasten the front panel to the rack rails.
4.2 Module Installation
Power Off: Disconnect all power supplies before inserting/removing modules.
Insert Power Supplies:
Primary power supply into Slot P1.
Redundant power supply into Slot P2.
Insert CPUs:
Primary CPU (e.g., IC697CPU781) into Slot 1.
Redundant CPU into Slot 7.
Insert I/O/Communication Modules: Fill remaining slots (2–6, 8–12) with I/O, communication, or VME modules.
Seat Modules Firmly: Push until the ejector clicks; ensure full backplane engagement.
4.3 Wiring
Power Wiring: Connect AC/DC power to the power supply modules (refer to power supply manual for details).
Grounding: Connect the rack’s chassis ground lug to protective earth (PE) for safety and EMC.
Field Wiring: Route I/O field cables to the front terminals of I/O modules.
5. Redundant System Configuration
5.1 Redundancy Setup
Dual CPUs: Install identical primary and secondary CPUs in Slot 1 and Slot 7.
Redundant Power: Install two matching power supplies in Slot P1 and P2.
Synchronization: Connect the CPU redundancy link cable between the primary and secondary CPUs.
Configuration Software: Use GE Fanuc programming software to enable redundancy mode and set failover parameters.
5.2 Redundancy Operation
Primary Active: The primary CPU controls the system; the secondary CPU operates in hot standby, mirroring all data.
Failover Trigger: If the primary CPU, power supply, or critical I/O fails, the system switches to the secondary CPU in <5 ms.
Fault Recovery: After repairing the faulty component, the system automatically resynchronizes and restores redundancy.
6. Maintenance & Troubleshooting
6.1 Preventive Maintenance
Cleaning: Every 3–6 months, use low‑pressure dry air to remove dust from the rack, slots, and vents.
Inspection:
Check module seating and ejector locks.
Verify LED status indicators.
Inspect power supply and CPU redundancy cables.
Replacement: Use hot‑swap for I/O/communication modules; power off for CPU/power supply replacement.
6.2 Common Troubleshooting
| Symptom | Possible Cause | Solution |
|---|---|---|
| PWR LED OFF (one/both segments) | No power supply input; faulty power supply | Check AC/DC input; replace faulty power supply |
| OK LED OFF | Overvoltage/overcurrent on backplane; faulty module | Remove modules one by one to isolate fault; check power supply voltages |
| REDUND LED OFF | Redundant CPU offline; synchronization cable missing/broken | Verify secondary CPU power; check/replace redundancy cable |
| REDUND LED Blinking | Failover in progress; redundancy mismatch | Check primary CPU faults; ensure both CPUs have identical firmware/configuration |
| Module Not Detected | Loose module seating; dirty connector | Reinsert module; clean backplane connector with contact cleaner |
7. Safety & Compliance
7.1 Safety
Disconnect all power before servicing.
Do not open the rack casing; no user‑serviceable parts inside.
Avoid moisture, dust, and corrosive gases.
Proper chassis grounding is required for safety and EMC.
7.2 Compliance
CE: EN 61000‑6‑2 (EMC), EN 61010‑1 (LVD).
UL: UL 508 (industrial control equipment).
CSA: CSA C22.2 No. 142.
RoHS: EU RoHS compliant.
8. Ordering Information
Model: IC697CHS770D
Manufacturer: GE Fanuc (Emerson Automation)
Series: Series 90‑70 PLC
Standard Warranty: 12 months
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