Technical Parameters
Parameter Specification
Product Type Control Unit / Main Control Board
Model / Part Number CCU‑24‑S
Applicable System ABB ACS580 Series Drives
Primary Function Central control and communication interface for drive systems
Control Voltage 24 V DC (typical logic/control supply)
Processor / CPU Embedded control processor (for drive control logic)
Memory On‑board program and working memory (varies by firmware)
Communication Interfaces Standard industrial communication ports (such as Modbus/RS‑485, Ethernet, CANopen depending on configuration)
I/O Channels Digital and/or analog I/O for signals and status handling
Protection / Enclosure Rating Typically IP20 indoor panel / board mount rating
Operating Temperature Range –20 °C to +60 °C (typical industrial range)
Mounting Style Panel or DIN rail / internal drive chassis mount
Dimensions (Approx.) ~150–280 mm height × ~50–140 mm width × ~30–80 mm depth depending on variant
Weight (Approx.) ~0.5–0.6 kg
Standards Compliance IEC/EN industrial control standards
Application Examples Variable speed motor control, automation system integration, PLC communication, diagnostics
The ABB CCU-24-S is a specialized, fully supervised Charging Circuit Unit designed specifically for fire detection and alarm systems. Its primary function is to continuously monitor, regulate, and provide a stable 24V DC power supply to the battery backup system of a fire alarm control panel (FACP).