The ABB SDCS-AMC-DC-2 COAT (3ADT220090R0040) is a high-performance control unit board designed for industrial drive applications. This printed circuit board serves as a core component in the control architecture, providing precise regulation and signal processing capabilities for DC drive systems. It features a 36-pin connector interface for reliable integration into the drive control rack.
Features
Advanced 24-bit control resolution for high-precision regulation.
Fast loop update time of 250µs to ensure responsive drive performance.
High accuracy for both speed and torque control loops.
Integrated analog and digital I/O support for versatile field connectivity.
Conformal coating (COAT) for enhanced protection in harsh industrial environments.
Technical Specifications
Model
SDCS-AMC-DC-2 COAT
Order Code
3ADT220090R0040
Input Voltage
24V DC (±15%)
Control Resolution
24-bit
Loop Update Time
250µs
Speed Control Accuracy
±0.01% of setpoint
Torque Control Accuracy
±0.5% of rated torque
Analog Inputs
±10V / 4-20mA
Digital Inputs
24V DC
Operating Temperature
-40 degC to +70 degC
Storage Temperature
-50 degC to +85 degC
Relative Humidity
5-100% (condensing)
Installation Guidelines
Ensure the drive system is fully powered down and locked out before installing or removing the control unit board.
Handle the PCB by the edges to avoid electrostatic discharge (ESD) damage to sensitive components.
Verify that the 36-pin connector is properly aligned and fully seated to prevent intermittent signal loss.
Ensure the module is installed in a clean, dry environment within the specified temperature range to maintain long-term reliability.
Check that all signal cables are properly routed and shielded to minimize electromagnetic interference (EMI).
FAQ
What does the COAT suffix indicate? The COAT suffix indicates that the printed circuit board has been treated with a conformal coating, providing additional protection against moisture, dust, and corrosive contaminants in industrial environments.
Is this board compatible with standard 24V DC control signals? Yes, the digital inputs are designed for standard 24V DC logic levels, and the analog inputs support standard ±10V or 4-20mA signals.
