ABB SYNPOL D CMA 120 Generator Control & Power Management System – 3DDE 300 400 with CMA 131 B, CMA 132, CMA 135, CMA 136, CMA 137 and CMA 138 Spare Parts

Product Introduction

The ABB SYNPOL D Generator Control and Management System is a microprocessor-based control and monitoring system designed for marine diesel generator applications. Its functions include generator supervision, automatic operating sequences, synchronization, breaker control, load sharing and generator protection within a suitably configured shipboard electrical power system.

The ABB CMA 120, identified by part number 3DDE 300 400, is a principal controller assembly in the SYNPOL D system. It works with associated terminal boards, internal electronic modules and a front operator interface to manage signals between diesel generator equipment and the vessel's electrical switchboard.

For ships already equipped with SYNPOL D, obtaining the correct replacement controller or terminal board is important. Differences in board version, wiring, operating voltage and stored program configuration can affect replacement compatibility.

SM MARINE SERVICE™ offers three used, original SYNPOL D complete controller units and multiple associated spare terminal boards, according to the supplied inventory information. Buyers can inquire through www.smmarineservice.com for availability, identification and quotation details.

Product Information

Identification note: The photographs show ABB SYNPOL D equipment with different internal and external assemblies. Each controller, front panel and terminal board should be matched individually before sale or installation.

What Is the ABB SYNPOL D Generator Control System?

The ABB SYNPOL D is an integrated control system for supervising diesel generators and their electrical connection to a vessel's main switchboard.

On a ship fitted with multiple auxiliary generators, the electrical system must maintain sufficient power while coordinating generator starting, stopping, synchronization, load distribution and protective functions.

The SYNPOL D controller supports these operations through a combination of measurement, logic control, relay outputs, communication interfaces and operator controls.

In a typical multi-generator installation, an individual SYNPOL D controller is associated with each generator, while coordination between controllers depends on the vessel's specific power management architecture.

Typical Generator Operating Sequence

Main Features of ABB SYNPOL D

The SYNPOL D system combines generator control, monitoring and protective functions in a modular architecture.

• Automatic diesel generator start and stop: Supports programmed operating sequences and remote commands according to the installed configuration.

• Generator synchronization: Coordinates electrical conditions before the generator circuit breaker is closed.

• Automatic load sharing: Supports distribution of electrical load between generators operating in parallel.

• Generator protection: Provides monitoring and control functions associated with abnormal generator operating conditions.

• Blackout recovery functions: Supports configured automatic starting and power restoration sequences.

• Generator circuit breaker control: Interfaces with breaker opening, closing and related interlock signals.

• Power measurement and monitoring: Displays generator voltage, current, power, frequency and power factor.

• Manual and automatic operation: Operator controls allow authorized personnel to select appropriate operating modes.

• Alarm indication and event review: The front interface includes alarm/trip indications and controls for viewing operating information.

• Modular terminal boards: Dedicated CMA boards separate generator, diesel engine, communication and additional control functions.

These functions describe the system's intended capabilities. Their availability and behavior on an individual vessel depend on the installed program, connected boards and switchboard design.

ABB SYNPOL D Operator Display and Keypad

The photographed front panel carries the ABB logo and SYNPOL D identification.

Its visible instrumentation includes:

A defective display or keypad can make generator monitoring and local operation difficult even when other portions of the system remain functional.

Main Technical Specifications

Important voltage distinction: The +14.5–34 V DC marking refers to the controller power supply connection. The 380–480 V AC / 450 V AC information concerns the relevant generator connection board variant. These values must not be confused.

Main Components & Associated Part Numbers

The modular CMA board arrangement is one of the most important considerations when sourcing SYNPOL D spare parts.

ABB CMA 120 – Basic Controller Unit – 3DDE 300 400

The CMA 120 is the main controller/card-file assembly used in the SYNPOL D system.

It houses the system's control electronics and interfaces with the front operator panel and external terminal boards. The correct controller version and installed program are critical when replacing a failed unit.

ABB CMA 131 / CMA 131 B – Generator Connection Board – 3DDE 300 411

Rear connection designation: A

This board provides the generator connection interface. The supplied product information identifies a CMA 131 B variant marked 380–480 V AC.

A board marked 450 V AC is also visible among the photographed assemblies.

Replacement matching must account for the precise board variant, generator voltage and connection arrangement.

ABB CMA 132 – Generator Relay Terminal Board – 3DDE 300 412

Rear connection designation: B

The CMA 132 is associated with generator relay and control functions.

Its external terminal arrangement supports integration with the generator switchboard and the relevant protection/control circuits.

ABB CMA 136 – Serial Interface Board – 3DDE 300 416

Rear connection designation: C

The CMA 136 provides serial interface connections for communication within the relevant system arrangement.

The photographs show multiple D-sub connectors on the associated interface boards. Exact connector assignments and supported communication settings require the matching system documentation.

ABB CMA 135 – Diesel Control Terminal Board – 3DDE 300 415

Rear connection designation: D

The CMA 135 provides diesel engine control-related terminal connections.

The supplied board descriptions identify functions associated with start and stop control, emergency stop, speed adjustment, pickup signals and alarm/status inputs.

These connections should be verified against the actual board legend and the vessel's electrical drawings before any replacement.

ABB CMA 137 – Additional Functions Board

Rear connection designation: E

The CMA 137 is identified as an additional functions board. Its exact functions depend on the installed controller configuration and connected equipment.

ABB CMA 138 – Special Functions Board

Rear connection designation: F

The CMA 138 is identified as a special functions board.

The original equipment includes dedicated connectors for these additional functions. Replacement boards should be selected by their exact CMA identification and hardware version.

CMA Board Identification Summary

The table uses the supplied equipment information and visible board identifications. The listed part-number relationships should be confirmed against the exact replacement labels.

Internal CMA 120 Electronic Modules

Additional internal modules have been identified in the supplied product reference information. These are useful search identifiers for customers who require individual electronic cards rather than a complete controller.

These internal modules are included as sourcing reference identifiers. They are not all individually identifiable in the three supplied photographs, and their current stock availability has not been confirmed.

For component-specific inquiries, customers should submit a close-up photograph of the actual module label.

Functions Identified on the Terminal Boards

The photographed boards carry printed function legends and terminal markings. These include functions associated with:

• Speed increase and decrease

• Generator breaker opening and closing

• Synchronization commands

• Non-essential consumer tripping

• Active power and current signal outputs

• Load sharing

• Reverse power supervision

• Blackout starting

• Remote start and stop

• Diesel engine fault signals

• Analog speed control

• Pickup inputs

• Alarm channels

• Start release

Some supplied descriptions identify 4–20 mA output signals. Their exact ranges, terminal assignments and scaling must be verified against the specific installed board.

Marine & Industrial Applications

The ABB SYNPOL D system is particularly relevant to vessels equipped with diesel-driven electrical generators and automatic power management arrangements.

Ship Main Switchboard Generator Control

The controller can form part of the ship's main switchboard control system, supervising generator operating conditions and coordinating breaker commands.

Auxiliary Diesel Generator Management

On vessels fitted with multiple auxiliary diesel generators, SYNPOL D controllers can support generator starting, synchronization, parallel operation and load distribution.

Marine Power Management Systems

Depending on the installed configuration, SYNPOL D can contribute to the vessel's power management strategy by responding to changing electrical demand, generator availability and operating conditions.

Typical Vessel Categories

Applications may include tankers, bulk carriers, container vessels, offshore support vessels and other ships fitted with compatible ABB generator control equipment.

The suitability of any replacement controller must be established from the actual vessel installation, not from vessel type alone.

Common Problems & Troubleshooting

Problems involving generator synchronization, automatic starting or power management do not necessarily mean that the main CMA 120 controller has failed. The cause may involve an external sensor, control circuit, wiring connection, terminal board, power supply or software configuration.

Safety warning: Generator controls interface with live electrical systems and machinery that may start automatically. Troubleshooting, isolation and replacement must be performed by qualified personnel using the vessel's approved procedures. Never bypass protective trips or breaker interlocks to restore operation.

Common Alarms & Fault Indicators

The photographed SYNPOL D operator panels contain ALARM and TRIPPED indications, together with an LCD used to display operating information.

The terminal-board legends also identify alarm and protection-related functions.

Potential system conditions requiring investigation include generator protection trips, diesel engine faults, synchronization failures, communication interruptions and abnormal operating measurements.

However, the exact alarm messages, numeric fault codes and trip logic for the photographed units have not been established. These depend on the installed program and configuration.

When requesting technical assistance, customers should provide the actual alarm text or a photograph of the controller display.

Maintenance Tips for ABB SYNPOL D

Preventive maintenance can help preserve the reliability of an existing SYNPOL D installation.

• Inspect the controller enclosure, internal cards and terminal boards for physical damage.

• Check for loose or oxidized electrical connectors during authorized shutdowns.

• Verify the DC supply and related protection devices.

• Inspect communication cables and D-sub connectors.

• Record the controller's program version and operating parameters.

• Preserve available configuration records before replacing electronic modules.

• Check generator voltage and current measurements against approved reference instruments.

• Investigate recurring alarms rather than repeatedly resetting them.

• Verify correct synchronization, breaker operation and load sharing after authorized repairs.

• Maintain a properly identified spare-parts inventory for critical generator control equipment.

A replacement controller may require the correct application program and configuration before it can operate safely with the vessel's existing generator and switchboard.

Spare Parts & Replacement Availability

SM MARINE SERVICE™ offers used ABB SYNPOL D equipment and associated terminal boards for marine generator control applications.

According to the supplied inventory information, the available equipment includes:

Requesting the Correct Replacement

To help avoid ordering an incompatible module, buyers should provide:

1. Exact CMA module number and 3DDE part number.

2. Photograph of the original board or controller identification label.

3. Controller program version, where applicable.

4. Generator voltage and relevant board voltage rating.

5. Required quantity and destination country.

6. Details of the equipment failure, if replacement is required.

SM MARINE SERVICE™ also handles sourcing inquiries for other ABB generator automation components and marine electrical spare parts.

Visit SM MARINE SERVICE™ to submit an inquiry.

Why ABB SYNPOL D Equipment Is Still Used

Existing ships may continue operating with ABB SYNPOL D because the system is integrated into their generator control, switchboard wiring and power management arrangements.

Replacing a failed electronic board with a correctly identified compatible unit can sometimes be less disruptive than redesigning an entire generator control system.

However, older electronic control systems present several challenges:

• Replacement boards may have different hardware revisions.

• Existing controller programs may be vessel-specific.

• Original spare parts may be difficult to source.

• A visually similar module may not be electrically or functionally interchangeable.

• Modernization may require changes to switchboard wiring, protection coordination and operating procedures.

For these reasons, the choice between replacement and modernization should be made after evaluating the installed equipment and its support requirements.

The age of the photographed equipment does not, by itself, establish its current manufacturer support or official discontinuation status.

Related ABB SYNPOL Modules

Customers maintaining older ABB generator control equipment may also search for the following module families:

These are related legacy search references, not confirmed interchangeable replacements for the SYNPOL D CMA 120 system. Exact identification is necessary before ordering.

Frequently Asked Questions (FAQ)

What is the ABB SYNPOL D system?

ABB SYNPOL D is a generator control and management system used for marine diesel generator monitoring, synchronization, operating control and associated protective functions.

What is ABB CMA 120?

The CMA 120 is the principal controller assembly in the SYNPOL D system. The supplied part number is 3DDE 300 400.

What is the CMA 120 power supply voltage?

The photographed controller assembly identifies a power supply range of +14.5–34 V DC.

What is the function of CMA 131 B?

CMA 131 B is identified as a generator connection board. The supplied information includes a 380–480 V AC variant.

What is ABB CMA 132 used for?

CMA 132 is the generator relay terminal board associated with the SYNPOL D system.

What does CMA 135 control?

CMA 135 provides diesel engine control-related interfaces, including signals associated with starting, stopping, speed control and status monitoring.

What is the function of CMA 136?

CMA 136 is the serial interface board used for communication functions in the relevant controller configuration.

Can I replace a CMA 120 with another used controller?

A used controller may be suitable if its hardware, program version, configuration and electrical connections are compatible. Installation and testing should be carried out by qualified personnel.

Why is my SYNPOL D generator not synchronizing?

Possible causes include incorrect voltage or frequency, measurement problems, control wiring faults, interlock conditions or controller-related issues. The complete synchronization circuit must be investigated.

Are ABB SYNPOL D terminal boards available separately?

SM MARINE SERVICE™ reports spare CMA terminal boards in its inventory. Specific quantities and conditions should be confirmed at the time of inquiry.

How many complete SYNPOL D units are available?

The supplied stock information reports three complete used units, subject to reconfirmation before quotation.

Where can I buy ABB SYNPOL D CMA 120 spare parts?

International buyers can contact SM MARINE SERVICE™ through www.smmarineservice.com with their controller and terminal-board identification details.

Short Product Description

The ABB SYNPOL D CMA 120 (3DDE 300 400) is a marine diesel generator control and management system designed for generator monitoring, synchronization, breaker control, load sharing and associated protection functions. The system uses modular terminal boards including CMA 131 B, CMA 132, CMA 135, CMA 136, CMA 137 and CMA 138, together with an ABB SYNPOL D operator display. SM MARINE SERVICE™ reports three complete used original units and additional spare boards for sourcing inquiries. International customers can request quotations by providing the exact CMA model, 3DDE part number, program version and generator voltage details.

SM MARINE SERVICE™ COMPANY & CONTACT DETAILS

SM MARINE SERVICE™
Marine Automation & Navigation Equipment Supplier

Available Equipment Conditions:
New Equipment • Used Equipment • Refurbished Equipment • Reconditioned Equipment

Specific product condition and availability are subject to confirmation.

Stock Locations:
Bangladesh • China

Services:
Worldwide Shipping • Technical Support • Spare Parts Supply • Marine Equipment Sourcing

Contact Information

SM MARINE SERVICE™
Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh

Mobile / WhatsApp / Viber: +88 01818 929292
Email: info@smmarineservice.com
Website: www.smmarineservice.com

For quotations on ABB SYNPOL D CMA 120 controllers, CMA 131 B, CMA 132, CMA 135, CMA 136, CMA 137, CMA 138 terminal boards, or other marine generator automation spare parts, contact SM MARINE SERVICE™ with your equipment photographs, model numbers and delivery requirements.

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