Description

Mitsui BMS-2000 MSR-B22-B30E Product Description

Technical Specifications

• Product Model: BMS-2000 MSR-B22-B30E
• Brand: Mitsui Engineering & Shipbuilding
• Warranty: One Year
• Input Voltage: DC 24V standard marine control power supply
• Operating Temperature: 0°C to +55°C
• Storage Temperature: -20°C to +70°C
• Response Time: ≤100ms for safety protection trigger
• Protection Class: IP30 for cabinet indoor installation
• Accuracy Class: Class 0.5 for analog signal sampling
• Output Frequency: 50Hz / 60Hz adaptive relay output
• Rated Current Range: 0–5A resistive load per relay channel
• Communication Interface: RS485 serial bus, hardwired discrete I/O terminals
• Supported Protocols: Modbus RTU, proprietary Mitsui engine telegraph protocol
• Overload Capacity: 150% rated current for 60 seconds continuous
• Dimensions: 280mm (W) × 160mm (H) × 85mm (D)

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Product Overview

The BMS-2000 MSR-B22-B30E is a modular safety protection and monitoring subassembly belonging to Mitsui’s BMS-2000 marine main engine control system, specially designed for low-speed two-stroke propulsion engines on commercial seagoing vessels. This module functions as a core component of the Engine Protection System (EPS), undertaking real-time collection of critical engine operational parameters including lubricating oil pressure, cooling water temperature, exhaust gas temperature, crankcase pressure and rotational speed.

When preset threshold values are exceeded, the unit executes graded protective actions automatically: activating local and bridge audible/visual alarms first, triggering engine slowdown to reduce load, and initiating full emergency shutdown to prevent catastrophic mechanical damage to the main propulsion unit. It establishes reliable data interconnection with the bridge telegraph system and engine room local control panel via RS485 communication, ensuring consistent command transmission across multi-location operating stations.

Marine electrical technicians, vessel automation supervisors and ship management companies gain tangible benefits from this component. Its compact form factor simplifies retrofitting and spare part replacement on aging fleets, while robust marine-grade circuit design resists vibration, humidity and electromagnetic interference within engine control rooms. Standardized wiring terminals and protocol compatibility cut down commissioning and troubleshooting time during dry-dock maintenance, lowering overall vessel operational downtime and compliance risks against maritime safety regulations.

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Core Functional Highlights

1. Graded multi-level engine safety interlock: Alarm → Slowdown → Emergency Shutdown logic
2. Isolated signal input circuits to eliminate interference from marine power grid fluctuations
3. Modular plug-in structure for quick disassembly and on-board spare module swapping
4. Non-volatile memory to retain fault event logs for post-failure inspection and analysis