Yokogawa MS32*A S9750BH-05 5VDC 32A Power Supply

Product Overview

The Yokogawa MS32*A (assembly number S9750BH-05) is a system power supply module designed for Yokogawa CENTUM VP and CENTUM CS 3000 Field Control Units (FCU). It converts a 24 V DC input into a regulated 5 V DC output capable of delivering up to 32 A to power backplane logic circuits, computing cards, and communication modules within the FCU subrack.

Key Specifications

• Model Number: MS32*A (AS S9750BH-05)
• Product Type: System Power Supply Module
• Input Voltage: 24 V DC nominal (20 to 30 V DC range)
• Output Voltage: 5 V DC regulated
• Output Current: Up to 32 A
• Power Consumption: 150 W
• Isolation: 1500 V AC (input-to-output, 1 minute)
• Protection: Overcurrent, overvoltage, short-circuit
• Dimensions: 120 x 25 x 130 mm
• Weight: 0.45 kg
• Operating Temperature: 0°C to +60°C
• Humidity: 5% to 95% RH (non-condensing)

Features and Benefits

• High-capacity 32 A output supports fully populated FCU racks
• Wide 20-30 V DC input range accommodates varying plant DC bus voltages
• 1500 V AC galvanic isolation prevents ground-loop currents from affecting logic circuits
• Integrated overcurrent, overvoltage, and short-circuit protection safeguards downstream components
• LED indicators display RUN, FAIL, and input power status for rapid diagnostics
• Compact form factor fits standard Yokogawa FCU subrack slots

Applications

• CENTUM VP Field Control Unit backplane power
• CENTUM CS 3000 FCU rack power distribution
• System power for distributed computing and communication cards
• Industrial control cabinets requiring regulated 5 V DC at high current
• Power supply redundancy configurations in critical process control

FAQ

Q: What does the suffix *A indicate on the MS32 module?
A: The suffix letter denotes the hardware revision level. MS32*A is Revision A with assembly number S9750BH-05. Verify compatibility with your specific FCU model before ordering.

Q: What is the maximum output current?
A: The module can deliver up to 32 A at 5 V DC under full load conditions.

Q: What protection features are included?
A: The module includes overcurrent protection, overvoltage protection, and short-circuit protection to prevent damage to the power supply and downstream cards.

Q: How much power does the module consume?
A: The module has a power consumption of 150 W at full 32 A output load.

Installation Guide

1. De-energize the FCU rack before installing the power supply module
2. Align the MS32*A card with the subrack guide tracks
3. Insert the module perpendicular to the backplane until connectors lock
4. Tighten mechanical retention fasteners to prevent pin fretting
5. Connect incoming 24 V DC supply using heavy-gauge industrial conductors
6. Maintain physical separation between DC lines and high-voltage AC cables
7. Ensure unhindered convective airflow around the module for thermal management
8. Energize and verify RUN LED indicates normal operation

Selection Tips

• Select MS32*A for CENTUM VP/CS 3000 FCU rack power supply applications
• Calculate total rack power draw to ensure 32 A capacity is sufficient
• For redundant power configurations, install two MS32*A modules
• Verify 24 V DC plant power is available and within 20-30 V range
• Ensure adequate cabinet ventilation for 150 W thermal dissipation