Configured for multi-slot module backplane interconnection in Series 90-70 control architectures, the GE Fanuc IC694CHS790 (IC697CHS790 9-Slot Rear Mount Rack) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC697CHS790 |
| Brand | GE Fanuc / Emerson |
| Origin | USA |
| Weight | 5.16 kg (11.38 lbs) |
| Dimensions | Enclosure Depth: 255 mm (10 in); fits 19-inch standard front mount |
| Operating Temp | Standard industrial limit (0 to 60 deg C) |
| Power Consumption | 0.5 A current required from I/O bus |
| Slot Capacity | 9 I/O slots plus dedicated power supply slot |
| Operating Voltage | 5 VDC backplane logic |
| Bus Standard | VME standard C.1 compliance |
| Mounting Options | Rear mounting (10 in depth enclosure) and 19 in front rack mounting |
| Maximum 5 VDC Current | Up to 20 A (depending on power supply type: 20 A for 100 W supply; 11 A for 55 W supply; 18 A for 90 W supplies) |
| Expansion Support | Supported (via IC697CBL700 power supply extension cable) |
| Module Compatibility | All IC697 series processing and I/O modules |
Backplane Bus Communication Velocity & Deterministic VME Architecture
The IC697CHS790 rack utilizes a VME standard C.1 compliant backplane bus structure to maintain high-velocity bus communication and real-time execution across all 9 I/O slots. Hardware configuration and channel addressing are controlled dynamically via software, eliminating physical jumpers or DIP switches on individual processing modules. Rack ID identification is set directly through four dedicated jumper positions located behind the rack power supply section, ensuring seamless deterministic network synchronization across expanded rack configurations.
Frequently Asked Questions
Q: What power supply options determine the maximum 5 VDC current capacity of the IC697CHS790 backplane?
A: The maximum 5 VDC current depends on the installed power supply module: 20 A with a 100 W supply, 11 A with a 55 W supply, or 18 A with 90 W (24 VDC / 48 VDC) power supplies.
Q: How is the physical rack identification address configured on the IC697CHS790 chassis?
A: Rack identification is set using four physical hardware jumpers located behind the power supply module section on the backplane assembly.
Q: What cable is required to extend power connections between adjacent racks?
A: Rack expansion power connections utilize the dedicated IC697CBL700 power supply extension cable.
Field Installation Guidelines
- Mount the chassis securely into a 19-inch standard instrument rack or onto a panel surface providing at least 255 mm (10 in) enclosure depth clearance.
- Verify that frame grounding straps are attached directly to the ground lug on the rack frame before installing electronic modules.
- Set the rack identification jumpers behind the power supply slot to match the system configuration tables prior to powering the unit.
- Ensure all module retaining screws are fully engaged to maintain backplane bus contact integrity and vibration resistance.
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