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Xiamen xiongba e-commerce Co., Ltd.
Tel：+86 15359254348
Phone：+86 15359254348
Email：
plcdcs-module@foxmail.com
Address ：Fujian Province, China
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ABB

ABB CMA120 Panel 3DDE300400 Basic Controller Panel Unit | Synpol D

Manufacturer:ABB

Product Number: CMA120 3DDE300400

Product Type: Basic Controller Panel Unit

Place of Origin: Switzerland

✓ Payment Method: Telegraphic Transfer (T/T)

✓ Warranty Period: 12 months

✓ In Stock

✓ On-site Inspection Supported

Mail： plcdcs-module@foxmail.com

Phone/Wechat/Whatsapp：+86 15359254348

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CMA120 3DDE300400 is a basic controller panel unit of ABB Synpol D series. It integrates human-machine interface (HMI) and basic control circuits, designed for industrial automation, marine and power generation applications. Serving as a local basic control station, it supports system status viewing, command input, alarm acknowledgment and monitoring of critical process data.

ABB CMA120 3DDE300400 Basic Controller Panel Unit.jpg

Product Advantages

Integrated compact design: Combines HMI and control logic into a single panel, simplifying system structure and wiring. Suitable for cabinet mounting to save installation space.Industrial high reliability: Reinforced structure and industrial coating deliver excellent resistance to vibration, impact and wide temperature variation, stable in harsh working conditions.Seamless ABB ecosystem compatibility: Natively matched with Synpol D control system, seamlessly integrated with ABB controllers, I/O modules and drive equipment to cut renovation difficulties.Durable service & easy maintenance: Long-term supply and backward compatibility available for this legacy product line, supporting on-site quick replacement and minimizing downtime risks.

User-friendly operation: Equipped with dedicated keypad, status LEDs and display screen. Parameter configuration and alarm management can be done without complex programming.

CMA120...jpg

Product Specifications

1. Core Hardware Configuration

Processor: 32-bit high-performance processorMemory: 256 MB system memoryPower supply: 24 V DC, wide voltage range 14.5–34 V DCIsolation: 500 V DC isolation between power supply and logic circuitOperating temperature: -20 °C ~ +60 °CStorage temperature: -40 °C ~ +85 °CProtection grade: Front panel IP65

2. I/O Interfaces

Digital input: 16-channel 24 V DCAnalog input: 4-channel 0–10 V / 4–20 mARelay output: Multiple standard control contacts

3. Human-Machine Interface

Display: High-resolution LCD, real-time display of process data, operating status and alarmsKeypad: Membrane keys for parameter adjustment, mode switching and alarm confirmationStatus LED indicators: Power, run, fault and alarm indicators for rapid status identification

4. Communication & Expansion

Protocols: Supports RS-485 and ABB internal bus, connects with host computers and other controllers

Modular expansion: Expandable with I/O and communication modules to fit systems of different scales

CMA120..jpg

Application Scenarios

Marine power system: Control of main and auxiliary marine generators, power distribution monitoring and alarm management, adaptable to marine salt fog and vibrating environments.

Industrial power generation: Start-stop control, load management and fault diagnosis of standby generators and distributed power stations.

Process control: Monitoring and closed-loop control of temperature, pressure, flow and other parameters in chemical, water treatment and oil & gas industries.

Motor Control Center (MCC): Centralized start-stop, protection and status monitoring of factory pumps, fans, conveyors and other motors.

Building & infrastructure: Monitoring and operation of HVAC systems, emergency power supplies and fire control systems in large buildings.

FAQ

Power indicator on but screen blackCause: Backlight failure, display damage or internal power module abnormality.Solution: Shine a flashlight obliquely on the screen. Dim visible image indicates backlight fault, replace backlight driver. No image detected, inspect internal power unit or display panel.
Unresponsive or laggy keysCause: Aging, dust accumulation or poor contact of membrane keys.Solution: Power off and clean key surface. Replace original membrane keypad if problem persists.
Communication failure, unable to connect controllerCause: Wrong wiring, missing bus terminating resistor or address conflict.Solution: Check cable polarity and shield grounding; verify proper installation of 120Ω terminating resistor; ensure unique device addresses.
Frequent abnormal power alarmsCause: Excessive input voltage fluctuation, poor grounding or aging internal power module.Solution: Maintain input voltage within 24 V DC±10% via multimeter test; ensure grounding resistance below 4Ω; replace internal power module if fault remains.
Parameter backup and restoration methodOperation: Access System Menu → Parameter Management → Backup to save data to internal storage. Select Restore and confirm backup file to complete recovery.
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