Model Explanation

51400665-100: Honeywell part number (without delimiter, i.e. 51400665100)

51400665 = Power System Backplane Series

100 = Standard version, Rev C hardware, 94V-0 flame-retardant grade

Component Type: Power System Backplane

Compatible Rack: TDC 3000 Standard 10-slot / 5-slot Control Rack Technical Specifications

Power supply voltage: 24 VDC (±10%), 5 VDC, ±15 VDC (multiple outputs)

Maximum current: 20 A (total load), 3 A per slot

Interconnection signals: LCN, UCN, I/O bus, power monitoring, fan alarm

Insulation class: 94V-0 (flame retardant), high voltage isolation 1500 V RMS

Operating temperature: 0°C ~ +60°C (cabinet environment)

Storage temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% RH (no condensation)

Size: 480 × 320 × 20 mm (standard cabinet installation)

Weight: 0.87 kg

Certifications: CE, UL, CSA, RoHS

Interfaces and Configuration

Power input: 2 redundant 24 VDC terminals (anti-reverse insertion)

Slot interface: 10 standard card slots (compatible with LCNP, HPM, I/O cards)

Backplane bus: LCN local control network, UCN universal control network, I/O expansion bus

Status monitoring: Power normal (PWR), fan failure (FAN), redundant loss (RED) LED indication

Installation method: Back of the cabinet fixed with screws, supports hot-swappable cards

Compatibility: Directly replace 51400665-100 Rev C, compatible with the entire series of TDC 3000 cabinets Core function

Centralized stable power distribution: Convert the external 24 VDC to multiple stable voltages such as 5 VDC, ±15 VDC, etc., to supply power to all card components. The voltage fluctuation is controlled within ±1%, ensuring the stable operation of the system.

Full signal interconnection: Integrate LCN/UCN communication buses and I/O control buses to achieve seamless data interaction between the controller, I/O cards, and communication cards, reducing external wiring and enhancing anti-interference ability.

Redundant power management: Support dual 24 VDC redundant inputs, with single-path failure automatically switching, with a switching time of less than 20 ms, avoiding system shutdown due to a single-point power failure.

Cabinet-level status monitoring: Real-time monitor the power supply of each slot, fan operation, and communication link status. When an anomaly occurs, trigger DCS system alarms to facilitate rapid fault location.

Industrial-grade reliable design: 94V-0 flame-retardant material, reinforced grounding design, anti-vibration structure, suitable for harsh industrial environments such as chemical, power, and metallurgy, with stable long-term operation. Applicable scenarios

System: Honeywell TDC 3000, TPS, Experion PKS (C200/C300/HPM)

Cabinet: 10-slot / 5-slot standard control cabinets, HPM cabinets, APM cabinets, I/O expansion cabinets

Industry: Petrochemicals, thermal power, nuclear power, metallurgy, cement, glass, pharmaceuticals

Application: System expansion, old cabinet renovation, backplane aging replacement, redundant power supply upgrade, high-density I/O cabinet setup