ABB’s industrial drive, ACS880, rated from 0.55 kW to 250 kW, has been developed with the original equipment manufacturer (OEM) design engineer in mind. It can control virtually any type of motor from AC induction to permanent magnet.
“It is designed to be compatible with all industries and motor-driven applications. There are very few applications that OEMs design which cannot benefit from the functionality of this drive,” says Andy Preston, UK Drives product Manager.
Pre-programmed application macros, means that the drive can be customised to the precise needs of applications such as cranes, extruders, winches, conveyors, mixers, compressors, pumps and fans. The drives feature an array of options, ranging from fieldbuses, EMC filters, resolvers, encoders, du/dt filters, sine filters, chokes and brake resistors.
Communications
The drives feature extensive communication facilities, with three slots for control and communication options, such as fieldbus adapters, speed feedback modules and a safety functions module. Standard input and output can be extended by using optional analogue and digital input/output extension modules. The modules are easily installed in the extension slots located on the drive.
ABB’s industrial drives are compatible with a wide range of fieldbus protocols, such as ProfiNet, Profibus DP, Modbus, Lon Works, EtherNet/IP, EtherCAT, DeviceNet and CANopen. Plug-in Ethernet fieldbus adapter modules can easily be mounted inside the drive, enabling communication between the ACS880 drive and the other systems, devices and software that form part of the application.
The fieldbus adapter module allows users to build an Ethernet network for drive monitoring and diagnostic and parameter handling purposes. The ACS880 supports two fieldbus connections simultaneously and the user can choose between control modes and can employ redundant fieldbus adapters using the same protocol. Embedded Modbus communication can also be configured in the software.
Design tools
ABB’s ControlBuilder Plus, based on CoDeSys, is a common engineering tool used for AC500 PLCs and ACS880 drive configuration and programming, allowing easy integration with a PLC. ControlBuilder Plus includes easy interfacing to drive control loops and I/O, creation of user parameters and events and offers five different IEC standard programming languages.
A useful feature for the designer is the Drive composer PC tool, the professional version of which provides features such as custom parameter windows, control diagrams showing the drive’s configuration, basic parameter programming and safety settings. The control diagrams avoid the need to browse long lists of parameters and help to set the drive’s logic quickly and easily.
A point-to-point connection via standard USB cable offers an easy way to connect the new PC tool to the drive. For longer distance connections, an RS485 based network can be created by connecting the control panel to the PC with a standard USB cable, using an Ethernet cable between the control panel and the drive.
Multiple drives can be daisy-chained for synchronised drive-to-drive communication.
Feedback devices
ACS880 drives can be connected to various feedback devices, such as HTL pulse encoder, TTL pulse encoder, absolute encoder and resolver. The optional feedback module is installed in the option slot on the drive. Two feedback modules can be used at the same time, of the same or different type.
Safety
Braking control is integrated into the ACS880 single drives, not only for controlling braking, but also supervising system status and detecting failures such as brake resistor and resistor cable short-circuits, chopper short-circuit, and calculated resistor over temperature.
Integrated safety features simplify machine design and reduce the need for external safety components, simplifying configuration and reducing installation space. The ACS880 comes with safe torque-off as standard, used for prevention of unexpected start-up and stopping-related functions enabling safe machine maintenance and operation. With safe torque-off activated, the drive will not provide a rotational field. This prevents the motor from generating a torque on the shaft.
Optional safety functions include safe stop 1, safe stop emergency, safely-limited speed, safe brake control and safe maximum speed. These are provided by the FSO-11 safety functions module, which provides a cost-efficient solution to providing safety functions.
Each ACS880 model can be equipped with a built-in filter to reduce high frequency emissions.
http://new.abb.com/drives/low-voltage-ac/industrial-drives/acs880-single-drives
