Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | Honeywell 51198651-100 |
| Manufacturer | Honeywell |
| Product Type | Power Supply Module (SPS5785) |
| Input Voltage | 100-240 VAC / 48 VDC battery |
| Input Frequency | 47-63 Hz |
| Output Voltage (AC Line) | 24-26 VDC nominal |
| Output Voltage (Battery) | 24-26 VDC |
| Core Voltage Rails | 5 VDC logic / 24 VDC field loop |
| Additional Output | 6 VAC @ 35 mA (line frequency sync) |
| Output Current (24VDC) | 20 A maximum |
| Operating Temperature | -20°C to +55°C |
| Temperature Derating | 0.5 A/°C above 55°C up to +65°C |
| Dimensions | 21.6 cm × 29.6 cm × 14.0 cm |
| Weight | 5.18 kg (11.42 lbs) |
| Cabinet Compatibility | PM / APM / HPM UCN cabinets |
| Compliance | CE compliant |
Main Features and Advantages
The Honeywell 51198651-100 distinguishes itself through a multi-rail power architecture that simultaneously supplies regulated 5 VDC and 24 VDC outputs, eliminating the need for separate power conversion stages within the control cabinet. This consolidated design simplifies cabinet wiring and reduces the total component count, contributing to higher system reliability and easier maintenance.
Redundant parallel operation: The Honeywell 51198651-100 incorporates internal diode auctioning circuitry that enables two or more power supplies to operate in parallel with automatic load sharing. When configured redundantly, a single Honeywell 51198651-100 failure results in instantaneous load transfer to the remaining unit with zero disruption to the processor backplane, ensuring continuous operation for petrochemical and power generation facilities where unplanned shutdowns carry significant financial consequences.
Comprehensive protection circuitry: The Honeywell 51198651-100 includes built-in overvoltage (OVP), overcurrent (OCP), short-circuit, and over-temperature protection. Automatic current limiting and latching functions prevent load faults from damaging downstream controller cards, while thermal protection triggers safe shutdown before internal components experience accelerated aging. These protections safeguard the substantial investment represented by HPM processors, LCN communication cards, and field I/O modules.
Battery backup integration: The Honeywell 51198651-100 features an integrated charging circuit for 48V battery systems, enabling seamless transition to backup power during grid instability or mains failure. This capability is particularly valuable in regions with unreliable power infrastructure or where regulatory requirements mandate battery-backed control system operation.
Diagnostic and monitoring capabilities: The Honeywell 51198651-100 reports power supply voltage, load current, and temperature status through the rack backplane to the operator station, with front panel indicators providing immediate visual confirmation of normal and fault conditions. Hot-swap capability allows replacement during system operation in redundant configurations, minimizing maintenance windows and supporting continuous production schedules.
