2MLP-DC42 MasterLogic-200 Power Supply Module | Honeywell

The Honeywell 2MLP-DC42 is a compact DC-to-DC power supply module engineered for the MasterLogic-200 PLC system. Operating from a nominal 24 VDC input, it converts field DC power into a regulated 5 VDC output supplying up to 6 A to energize local CPU processors, communication interfaces, and rack-mounted I/O assemblies.

Power Conversion and Voltage Regulation

The module operates across an input range of 19.2 VDC to 28.8 VDC, providing stable power delivery with a typical efficiency of at least 85%. It maintains tighter control on backplane power quality, delivering a regulated 5 VDC (+/- 2%) output with a low ripple voltage of 50 mV peak-to-peak or less under full load conditions. The internal output response time executes in under 10 ms during transient changes.

Protection Features and Physical Layout

Comprehensive built-in electrical protection mechanisms include overcurrent protection that engages at or above 6.6 A, overvoltage protection triggering between 5.5 VDC and 6.5 VDC, continuous short-circuit protection, and an integrated internal fuse for complete circuit isolation during severe fault conditions.

The physical enclosure measures 300 mm x 200 mm x 100 mm and weighs 0.5 kg, with options for DIN rail or direct rack mounting within control cabinets.

Technical Specifications

Frequently Asked Questions

Q: What is the operating input voltage range for the 2MLP-DC42 power supply?

A: The module operates on a nominal 24 VDC input with an allowable operating range of 19.2 VDC to 28.8 VDC.

Q: At what thresholds do the overvoltage and overcurrent protection circuits activate?

A: Overcurrent protection activates at 6.6 A or higher, while overvoltage protection engages between 5.5 VDC and 6.5 VDC.

Q: What is the maximum regulated 5 VDC output current supplied to the backplane?

A: The module delivers up to 6 A of continuous output current at 5 VDC (+/- 2%).