ABB CMA120 (3DDE300400) SYNPOL D Basic Controller Panel Unit

Description

3. Key Technical Specifications

• Product Type: Basic Controller Panel Unit
• Application: SYNPOL D diesel generator control and management
• Display/Interface: Integrated operator panel with HMI functions
• Control Functions: Automatic start/stop, monitoring, protection for generator sets
• Power Supply: 24 V DC typical (system dependent)
• Operating Temperature: 0 to +55 °C (typical for similar ABB panels)
• Dimensions: Approx. 152 mm x 152 mm x 76 mm (panel)
• Mounting: Panel or cabinet installation
• Communication: Supports SYNPOL D internal bus and external interfaces
• Weight: Approx. 0.7–1.2 kg depending on configuration
• Protection Class: IP20 or higher when properly enclosed

4. Product Introduction

The ABB CMA120 (3DDE300400) is the Basic Controller Panel Unit for the SYNPOL D system. It combines an operator interface with control logic for automatic management of diesel generator sets in marine and industrial power applications.

Field experience with SYNPOL D installations shows this panel handles core functions such as generator monitoring, automatic starting, synchronization, and protection. It serves as the central point for local operator interaction in generator control systems where reliability and straightforward operation matter most.

CMA120

CMA120

5. Installation & Configuration Guide

Stage 1: Pre-Installation Preparation (20-30 minutes) ⚠️ Safety First: Notify operations, isolate generator power, lock out/tag out, and discharge circuits. Tools Required: ESD strap, screwdrivers, multimeter, wire labels, camera. Data Backup: Photograph existing panel wiring, document parameter settings, and save any configuration files if accessible.

Stage 2: Removing the Old Module

1. Power down the SYNPOL D system.
2. Disconnect cables from the rear of the panel.
3. Remove mounting screws or clamps.
4. Carefully extract the unit and inspect connectors.

⚠️ Keep the old panel for direct comparison of terminal layouts.

Stage 3: Installing the New Module (15-25 minutes)

1. Verify the replacement is CMA120 (3DDE300400).
2. Configuration Clone: Transfer or match DIP switches, jumpers, or parameters from the old unit.
3. Mount securely in the panel cutout.
4. Reconnect all wiring and cables using original routing.

Self-Checklist: [ ] Model match confirmed, [ ] Wiring replicated, [ ] Mounting secure, [ ] No loose connections.

Stage 4: Power-On & Testing (20-40 minutes) Pre-Power Check: Verify power supply voltage and polarity. Power-On Steps:

1. Restore power to the control circuit.
2. Observe panel startup sequence and LEDs.
3. Check HMI display for normal operation.
4. Perform functional tests: start/stop commands, alarm simulation, and monitoring.
5. Verify communication with connected generator equipment.

⚠️ Troubleshooting Note: Blank display or no response often traces to power supply issues or incorrect wiring. Parameter mismatches can cause protection trips—cross-check settings carefully.

6. Frequently Asked Questions (FAQ)

Can this panel be hot-swapped under power? No. Always isolate power before replacement. The SYNPOL D system controls generators where live swapping risks equipment damage or unsafe operation.

Is this model obsolete, and are the units new? The SYNPOL D series is mature with many units still in service on vessels and power plants. Offered units are New Original or verified surplus, each inspected and tested prior to shipment.

What is the direct replacement if CMA120 is unavailable? Later SYNPOL variants or upgraded panels may apply depending on the exact generator setup. Confirm compatibility with your existing CMA modules and software version.

Will generator control parameters be lost during replacement? Parameters are typically stored in the panel or connected modules. Back up settings beforehand and reload or verify after installation to avoid misoperation.

Why is the price lower than current OEM list price? These are new surplus panels from established inventory. They undergo full visual, electrical, and functional verification without the overhead of active production lines. Test documentation is provided.