Description
The HONEYWELL 05701-A-0511 rack system serves as the foundational infrastructure for mounting, powering, and interconnecting the System 57 multi-channel gas and fire control cards. Engineered to optimize control room panel density, this robust industrial sub-rack chassis features standard European dimensions to fit seamlessly into conventional 19-inch equipment cabinets. It provides a common heavy-duty backplane infrastructure that manages DC power distribution and facilitates signal routing between the multi-channel input cards and rear termination blocks, ensuring a highly reliable safety matrix layout for critical environments.
Product Datasheet & Specifications
- Manufacturer: Honeywell / Honeywell Analytics
- Component Type: System 57 Control Chassis / Mounting Rack
- Slot Capacity: Supports up to 16 single-channel cards or a combination of 4-channel cards (such as the 05701-A-0511) and Engineering Cards
- Construction Material: High-strength anodized aluminum alloy and zinc-plated steel
- Power Bus Configuration: Dual redundant 24 V DC inputs on the backplane
- Approximate Dimensions: 48.3 cm x 13.3 cm x 29.5 cm (Standard 19″ Wide, 3U High)
- Approximate Weight: 2.8 kg (Empty Rack Enclosure)
- Country of Origin: United Kingdom (UK)
- Certification: ATEX Compliant, CE Certified, SIL 2 System Rated
- Backplane Connections: Dedicated DIN 41612 connector rows for card-to-backplane integration
HONEYWELL 05701-A-0511
HONEYWELL 05701-A-0511
HONEYWELL 05701-A-0511
Key Application Fields
- Centralized Gas Control Rooms: Acts as the main monitoring hub for plant safety systems in manufacturing and chemical facilities.
- Marine Vessel Infrastructure: Mounted within compact electrical enclosures on ships and drilling rigs to manage gas detector arrays.
- Petrochemical Control Stations: Consolidated safety rack architectures designed to oversee multi-zone refinery hazard perimeters.
- Commercial Mechanical Rooms: Houses grouped toxic and combustible gas alarm systems for large-scale facility HVAC safety.
- Modular E-Houses: Serves as a pre-assembled, drop-in safety monitoring node for remote mining and sub-station sites.
Product Instructions & Guidelines
- Enclosure Mounting: Secure the rack chassis firmly into a standard 19-inch instrument cabinet or wall-mount enclosure using heavy-duty panel screws and locking washers.
- Redundant Power Wiring: Connect primary and secondary 24 V DC power supplies to the independent terminals on the rack backplane to guarantee uninterrupted safety monitoring during electrical source cutovers.
- Card Insertion Mechanics: Guide the 05701-A-0511 controller card smoothly along the plastic card guides inside the rack. Gently push the front edge until the rear DIN connector fully mates with the backplane, then lock the faceplate retention screws.
- Grounding Protocol: Ensure a dedicated low-impedance earth ground strap is connected from the chassis grounding bolt directly to the main cabinet ground bus to shield against EMI.
- Thermal Maintenance: Leave adequate clearance (at least 1U of air gap or ventilation space) above and below the rack assembly to allow ambient air dissipation and prevent thermal buildup across densely packed control loops.
Q&A – Frequently Asked Questions
- Q: How many 05701-A-0511 four-channel cards can fit into a single standard 3U rack?
- A: A full-size 19-inch rack can accommodate up to 16 card positions. However, space must be allocated for an engineering card or interface card, allowing for a substantial total of active sensor channels per rack assembly.
- Q: Does the rack assembly include the individual rear termination modules?
- A: The basic rack chassis consists of the frame and backplane. Rear termination blocks, matching relay modules, and input cards are typically specified and purchased based on the unique circuit configuration of the project.
- Q: Is the System 57 rack backplane hot-swappable if a fault occurs on the frame?
- A: No, the backplane is a passive distribution board. Replacing or servicing the physical rack frame or backplane assembly requires a complete system shutdown to prevent short circuits and false alarm trips.
- Q: Can this rack handle both gas monitoring cards and fire detection loops simultaneously?
- A: Yes, the System 57 rack architecture is a universal ecosystem. You can mix and match compatible gas control cards, fire loop controllers, and logic cards within the same chassis frame.
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