Product Details
The Honeywell 900RR0-0200, also cataloged as the 900RR0 Redundant Controller Rack, operates as a dedicated hardware component for housing dual redundant control processor modules within ControlEdge HC900 automation architectures. This assembly provides the physical mounting chassis, redundant power routing paths, and high-speed inter-processor bus links needed to maintain continuous CPU synchronization. The chassis establishes direct physical and electrical execution for bumpless failover operations across parallel processing units.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900RR0-0200 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 1.751 kg (1751 g) |
| Dimensions | 151.7 mm D x 261.6 mm W x 137 mm H |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive chassis backplane bus assembly |
| Rack Configuration | Dual Redundant CPM Rack Assembly |
| System Compatibility | ControlEdge HC900 Series |
| Shipping Weight | 2.0 kg |
Channel-to-Channel Isolation & Redundant Bus Connectivity
The Honeywell 900RR0-0200 chassis architecture features internal backplane isolation channels designed to decouple control logic signals from power supply cross-talk. Ground distribution planes built directly into the backplane printed circuit board provide shielding against common-mode electrical transients and radio-frequency interference. Signal routing paths support continuous database mirroring between primary and backup CPUs, allowing full channel-to-channel isolation and structured communication without signal degradation across redundant system nodes.
Frequently Asked Questions
Q: Can a single Control Processor Module (CPM) be replaced in the 900RR0-0200 rack while the primary controller is actively processing logic?
A: Yes, the redundant rack backplane supports Removal and Insertion Under Power (RIUP) for the secondary or standby CPU module, provided all grounding protocols and field wiring safety isolation precautions are strictly followed.
Q: What mounting orientation is required for the 900RR0-0200 controller rack assembly?
A: The rack must be mounted horizontally on a flat cabinet panel or enclosure frame to ensure proper vertical thermal convection air circulation through the installed power supplies and processing modules.
Field Installation Guidelines
- Securely mount the 900RR0-0200 rack to the enclosure backpanel using standard mounting hardware to establish a solid physical frame anchor.
- Connect a low-impedance ground strap directly from the chassis grounding stud on the rack frame to the main protective earth (PE) busbar.
- Maintain a minimum clearance of 75 mm (3.0 inches) above and below the rack frame for unimpeded natural convective heat dissipation.
- Inspect the backplane slot connectors for foreign debris or bent pins prior to inserting controller modules or power supplies.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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Safety Relays in Industrial Automation: Fundamentals, Design Standards, and Fail-Safe Architecture
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