Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 3DDE300400 (CMA120) |
| Manufacturer | ABB |
| Product Type | Front Panel Assembly (Basic Controller Panel) |
| Compatible Controller | ABB AC 800M CMA120 Basic Controller |
| Operating Elements | 3-position sliding switch (RUN / STOP / REMOTE) |
| Status Indicators | 3× LED (POWER: Green, RUN: Yellow, ERROR: Red) |
| Reset Function | Red reset button (RESET) with anti-mistouch recess |
| Power Supply | Via controller backplane (+5V DC / +24V DC) |
| Mounting Method | Snap-fit / card-edge connection to CMA120 module front |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -25°C to +70°C |
| Protection Rating | IP20 (cabinet-mounted installation) |
| Material | Flame-retardant engineering plastic (UL94 V-0) |
| Certification | CE, IEC 61010-1 |
Main Features and Advantages
The ABB 3DDE300400 CMA120 delivers practical local control functionality through its intuitive three-position sliding switch, enabling operators to select between RUN, STOP, and REMOTE modes without external tools or software. This switch employs an industrial-grade micro-switch mechanism rated for over 50,000 operations, ensuring reliable performance throughout the controller’s service life . The tactile feedback provides positive confirmation of mode selection, eliminating ambiguity during critical operational transitions.
Integrated LED diagnostics for rapid status assessment: The ABB CMA120 3DDE300400 features three distinct LED indicators that communicate controller health at a glance. The green POWER LED confirms backplane voltage presence, the yellow RUN LED indicates program execution, and the red ERROR LED alerts operators to hardware faults, communication interruptions, or I/O anomalies . This immediate visual feedback enables technicians to distinguish between power loss, program halt, and hardware failure without resorting to diagnostic software, significantly reducing response time during fault conditions.
Protected reset and robust construction: The ABB 3DDE300400 incorporates a recessed red reset button designed to prevent accidental activation during routine maintenance activities . Built-in ESD protection circuits safeguard the controller’s sensitive processing components from electrostatic discharge during panel handling or replacement . The snap-fit mounting system allows tool-free installation and removal, while the card-edge connection ensures secure electrical contact and prevents incorrect installation through keyed interface design .
