Description

ABB CMA114 3DDE300013

ABB CMA114 3DDE300013 is a dedicated control module for diesel engines, designed as an integrated control and protection unit for diesel generator sets and marine main/auxiliary engines. It integrates speed regulation, load sharing, fault protection, data communication, and local monitoring functions. As a key component of ABB marine and power plant automation solutions, it is widely used in applications such as ships, offshore platforms, oil and gas field captive power plants, and data center backup power supplies. It provides precise full-process control for stable starting, operation, and shutdown of diesel units, featuring high vibration resistance, wide temperature adaptability, and high reliability certified by classification societies.

It features a compact, industrial sealed design, with dimensions approximately 220mm×85mm×120mm (subject to physical product) and a weight of approximately 1.43 kg (official spare part data). It supports standard DIN rail (TS35) or panel-mounted installation with clearly labeled terminals, suitable for narrow engine room spaces and vibrating environments.

1. Technical Specifications

Power Specifications

• Input voltage: dual-range 12/24 VDC (industrial/marine standard DC), voltage tolerance ±15%, with short‑term surge immunity;
• Rated power consumption: ≤15 W, low-power design suitable for battery‑supplied applications;
• Protection: reverse polarity protection, over‑voltage / over‑current / short‑circuit protection to prevent module damage from abnormal power supply in engine rooms.

Environmental Specifications

• Operating temperature: -25°C to +70°C, suitable for extreme temperature differences in marine engine rooms and outdoor power plants;
• Storage temperature: -40°C to +85°C;
• Protection class: IP20 (cabinet-mounted) / optional IP54 sealed enclosure;
• Vibration resistance: 2g (10–500 Hz), shock resistance: 15g (11 ms), complying with marine equipment standards;
• Cooling: fanless natural convection, eliminating fan failures and dust buildup for extended service life.

Control & Communication Specifications

• Control & I/O: dedicated real‑time processor supporting PID speed control; multi‑channel analog inputs (0–20 mA/4–20 mA, 16‑bit resolution for temperature, pressure, oil pressure), digital inputs (overspeed, emergency stop, start signal), relay outputs (control starting motor, alarm lamp, shutdown solenoid, rated current 2 A per channel); 128×64 pixel local LCD display with keypad for on‑site parameter setting;
• Communication interfaces: integrated RS‑485 (Modbus RTU), CANopen, optional Ethernet (EtherNet/IP); data update cycle ≤100 ms, supporting remote monitoring and parameter download;
• Redundancy & Safety: dual‑module hot standby (for critical power plants), primary/backup switchover time < 200 ms; built‑in EEPROM to retain parameters after power loss; self‑diagnosis and fault log functions.

2. Features

• Full‑process diesel unit control: one‑touch automatic start / stop, precise closed‑loop speed control (steady‑state accuracy ±0.2%), load sharing and paralleling control for parallel operation of multiple units;
• Comprehensive protection and interlock logic: pre‑set thresholds for overspeed, low oil pressure, high water temperature, low oil level, etc., triggering audible and visual alarms and interlock shutdown immediately to prevent engine damage;
• Strong communication and system integration: Modbus/CANopen interfaces for direct connection to marine PMS (Power Management System) or industrial SCADA, uploading operation data and alarm information, receiving remote control commands; can be paired with CMA112 display panel for local visual monitoring;
• Anti‑interference and high reliability: electrical isolation (isolation voltage ≥1.5 kV) to effectively suppress strong electromagnetic interference in engine rooms (frequency converters, generators); industrial‑grade components with long MTBF, certified by classification societies;
• Easy maintenance and configuration: online parameter modification and program download via RS‑232 service port or host software; local LCD displays real‑time parameters and historical fault codes for quick troubleshooting without specialized tools; hot‑swap terminals for convenient replacement.

3. Applications & Case Examples

• Marine main/auxiliary engine control: used as the core control module for each diesel generator in engine rooms of bulk carriers / container vessels, realizing automatic start, stable speed, paralleling, load sharing, and unmanned power station operation with PMS;
• Offshore platform captive power plant: controls coordinated operation of multiple diesel generator sets on offshore oil and gas platforms, quickly switching to backup units during grid fluctuations or single‑unit failures to ensure power supply for drilling and living facilities;
• Oil/gas field / mine power plants: provides control and protection for diesel power stations in remote areas without grid power, preventing unit failures caused by harsh environments and ensuring continuous power supply for production;
• Data center backup power: controls backup diesel generator sets in large data centers, starting within milliseconds upon mains failure and switching power seamlessly to avoid server downtime.

4. Product Advantages

• Professional diesel control algorithm: optimized PID and feed‑forward control for the non‑linear characteristics of diesel engines, with fast speed response and small overshoot;
• Classification society certification: certified by major societies including DNV and ABS, ready for classed ships without additional testing costs;
• Modular and compatible: can be combined with ABB display and communication modules of the same series, and compatible with third‑party governors and sensors, reducing system retrofit difficulty;
• Lower O&M costs: maintenance‑free cooling, self‑diagnosis, remote monitoring reduce on‑site inspection workload in engine rooms and shorten downtime.