Name: ABB 3ADT220090R0010 NDSC-01-COAT DSU Control Board for ACS600 Diode Supply Units - MASSIVE
SKU: ABB 3ADT220090R0010 NDSC-01-COAT

ABB 3ADT220090R0010 NDSC-01-COAT DSU Control Board for ACS600 Diode Supply Units

Brand ABB

Model ABB 3ADT220090R0010 NDSC-01-COAT

The ABB 3ADT220090R0010 is the control board identified by the ordering designation NDSC-01-COAT. It is an ABB-designed printed circuit board intended for the Diode Supply Unit (DSU) module used with the ACS600 drive family. In this architecture the DSU provides a controlled and supervised diode-bridge rectifier front end, and the ABB 3ADT220090R0010 is the section controller that manages supply-section sequencing, DC-link charging coordination, monitoring and protection. Its role is therefore not that of a generic motor-control card: it supervises how the supply section is enabled, how the DC intermediate circuit is handled, and how status and fault information are communicated to the overriding drive-control system.

The ABB 3ADT220090R0010 receives its operating power from the supply-section auxiliary supply and is configured locally through two 8-way DIP switches. One switch sets supply-voltage range, the current-transformer rating feeding the measurement circuit, DC-capacitor charging time, and whether loss of communication on the DDCS link is supervised. The second switch assigns the unit’s node address in the communication system. A 7-segment display on the board provides a practical local indication of operating state and fault information, which is particularly useful during commissioning and fault finding in cabinets where software tools are not immediately available.

The ABB 3ADT220090R0010 carries the -COAT suffix because the PCB is conformal coated. This surface treatment provides additional resistance to humidity, dust, salt-laden air and corrosive atmospheres, extending service life in harsh cabinet environments. It communicates with the overriding system over a DDCS link, allowing the supply section to be integrated into the drive’s distributed digital control structure. As a board-level spare, the ABB 3ADT220090R0010 is a service-critical component for keeping legacy ACS600 DSU installations operational without replacing the complete drive.

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Description

Technical Specifications

Parameter Name	Parameter Value
Product Model	3ADT220090R0010
Common Designation	NDSC-01-COAT
Manufacturer	ABB
Product Type	Diode Supply Unit (DSU) Control Board / Supply Section Controller
Compatible System	ABB ACS600 drive family and compatible diode supply modules
Core Function	Supply-section control, DC-link charging coordination, monitoring, protection, DDCS communication
Power Supply	DSU internal auxiliary supply rail
Supply-Voltage Setting	DIP switch S1: 400/450/500/600/690 V AC ranges
Measurement Input	Optional current-transformer input; e.g. 400/1 A application reference
Charging-Time Setting	DIP switch selectable; 500 ms or 1000 ms typical
Communication Loss Supervision	DIP switch selectable; supervised or not supervised
Communication Interface	DDCS link to overriding system
Node Addressing	8-way DIP switch S2
Local Indication	7-segment display
Digital Inputs	3 channels
Digital Outputs	3 + 1 relay outputs
Auxiliary Output	+24 V DC, 500 mA nominal
PCB Surface Treatment	Conformal coating (-COAT)
Mounting	Secured inside the DSU module with original mounting hardware and ground contact
Configuration Method	Dual 8-way DIP switches plus 7-segment display

Main Features and Advantages

The defining feature of the ABB 3ADT220090R0010 is that it provides a complete, dedicated control solution for an ACS600 diode supply section. Rather than relying on external relays and separate monitoring devices, the board integrates supply-voltage recognition, charging control, current measurement, digital I/O, fault supervision and DDCS communication. This reduces the number of discrete components in the cabinet and keeps the supply-section logic consistent with ABB’s original drive architecture.

Configuration without software is a key practical benefit. The ABB 3ADT220090R0010 uses DIP switches for supply voltage, current-transformer ratio, capacitor charging time and DDCS-link supervision. This allows correct setup even where the original parameter records are incomplete, and makes the board well suited to refurbishment, recommissioning and long-term support of older DSU installations. The node-address switch provides compatibility with existing DDCS communication layouts, while the 7-segment display gives immediate feedback during startup and fault investigation.

The -COAT version adds clear environmental resilience. The conformal coating protects tracks and components against humidity, conductive dust and corrosive contaminants, which is important in paper and pulp plants, water and wastewater installations, mining and minerals processing, steel and metals, marine and offshore applications, and other aggressive environments. The coating helps reduce the risk of creeping fault currents and intermittent failures that can otherwise be difficult to trace.

Maintenance efficiency is another strong point. The ABB 3ADT220090R0010 is a board-level replacement, so a faulty supply-section controller can be exchanged without replacing the entire DSU. Correct switch settings and cabinet cleanliness are usually sufficient to restore operation, and the local display allows technicians to confirm configuration and view fault indications quickly. For plants running legacy ACS600 equipment, this supports lower mean time to repair and avoids a forced full-drive upgrade.