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ABB ACS800-104-0105-3+Q967

The ABB ACS800-104-0105-3+Q967 is an inverter module in ABB’s ACS800 multidrive family, designed for integration into industrial cabinet-built variable-speed drive systems. It converts DC-link power into controlled AC output for operating compatible three-phase AC motors.

The ACS800-104 series is intended for modular drive installations, allowing inverter modules to be incorporated into larger drive assemblies according to the system’s power, control, and cooling requirements.

The +Q967 option provides Safe Torque Off (STO), a functional safety feature that disables the inverter’s ability to generate motor torque when the safety function is activated. This option is useful in machinery and industrial processes that require controlled prevention of motor torque during specified safety conditions.

2. Technical Parameters

The ratings above are for the ACS800-104-0105-3 module at the 400 V voltage class. Actual usable capacity depends on the load category, ambient temperature, installation altitude, and overall drive configuration.

3. Product Features

3.1 High-Performance Motor Control

The ACS800-104-0105-3 provides controlled AC output for industrial motor applications. When integrated with a compatible ACS800 multidrive control system, it supports precise speed and torque regulation for demanding industrial processes.

3.2 Modular Multidrive Architecture

The inverter module is designed for cabinet installation and integration into a common DC-bus drive system. Its modular construction supports system-level engineering, maintenance, and replacement without requiring every drive component to be installed as a standalone unit.

3.3 Integrated Safe Torque Off Function

The +Q967 option provides a Safe Torque Off function that prevents the inverter from generating motor torque when the safety function is activated. This supports machinery safety designs requiring controlled prevention of motor movement.

STO does not electrically isolate the drive from its power supply. Electrical isolation procedures must still be followed during maintenance, and the safety function must be validated as part of the complete machine safety system.

3.4 Industrial Reliability

The module is designed for continuous industrial operation when installed and operated within its specified electrical, thermal, and environmental limits. Appropriate cooling, cabinet ventilation, and preventive maintenance help maintain reliable performance.

3.5 Flexible System Integration

The ACS800-104 can be incorporated into compatible multidrive systems serving different motor-driven loads. Its performance depends on the associated control unit, firmware, DC-bus arrangement, and system configuration.

4. Structural Composition

The ABB ACS800-104-0105-3+Q967 consists of the following principal functional sections:

• Inverter Power Stage: Power semiconductor devices convert DC-link energy into variable-frequency, variable-voltage AC output.

• DC-Link Interface: Connects the module to the common DC bus of the multidrive system.

• Gate-Drive Circuitry: Controls the switching of the inverter power semiconductors.

• Control and Monitoring Interfaces: Exchange commands, feedback, and status information with the associated drive control system.

• Cooling Assembly: Dissipates heat generated during power conversion and helps maintain acceptable component temperatures.

• Safe Torque Off Circuit: The +Q967 safety option uses dedicated safety circuitry to inhibit torque generation when the safety inputs meet the specified activation conditions.

• Power Connections and Mechanical Frame: Provide electrical connections, mechanical support, and mounting within the drive cabinet.

The exact board arrangement and terminal configuration depend on the hardware revision and installed options.

5. Application Fields

Industrial Manufacturing: Motor control for production machinery, processing equipment, and other industrial systems requiring adjustable speed and torque.

Pumps and Fans: Speed regulation for compatible industrial pumping, ventilation, and cooling systems.

Material Handling: Drive control for suitable conveyor systems and other motor-driven handling equipment.

Metallurgical and Heavy Industry: Integration into multidrive installations for compatible high-demand production equipment.

Power Generation and Utilities: Control of auxiliary motor-driven equipment in industrial utility systems.

Safety-Related Machinery: Applications requiring a properly engineered Safe Torque Off function as part of a machine safety system.

6. Conclusion

The ABB ACS800-104-0105-3+Q967 is a cabinet-installed, air-cooled inverter module rated for the 400 V class, with a typical 75 kW motor rating under no-overload and light-overload conditions. Its R7i frame, modular multidrive architecture, and +Q967 Safe Torque Off option make it suitable for industrial motor-control systems requiring both drive performance and functional safety integration.