Honeywell 51198947-100F Power Supply

The Honeywell 51198947-100F, also cataloged as the 51198947 HPM Power Supply, operates as a dedicated hardware component for AC-to-DC power conversion within Honeywell Universal Control Network (UCN) equipment cabinets, including PM, APM, and HPM systems.

Hardware Specifications

Process Control Power Infrastructure

• Dual-Source Input Redundancy and Charging Circuit The hardware infrastructure supports dual-source input paths, accepting standard line utility voltages between 85 and 264 VAC or a 48 VDC backup battery bank. An integrated internal charging circuit automatically manages the 48 VDC battery float charge parameters during normal AC line operation to ensure immediate cut-in upon line-voltage loss.
• Paralleled Output and System Synchronization Two or more power modules can be wired with their output pins configured in parallel execution to establish full $N+1$ component redundancy. Additionally, the module delivers a dedicated 6 VAC, 35 mA line-frequency synchronization signal directly to the UCN backplane to lock controller timing clocks with host grid frequencies.

Frequently Asked Questions

Q: How must the 51198947-100F load profile be adjusted if cabinet temperatures exceed 55 deg C?

A: The module supports full 10 A loading up to 55 deg C. If the ambient enclosure temperature rises above this threshold, a linear thermal derating of 0.5 A per deg C must be enforced up to the absolute hardware limit of +65 deg C (where maximum allowable continuous current drops to 5 A).

Q: Does the module balance current automatically when running in a parallel configuration?

A: Yes. The nominal 25.25 VDC output paths are matched at the physical pin headers to support proportional current sharing across shared power rails, preventing a single module from sourcing the entire cabinet bus load during parallel operation.