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ABB's drives family continues to expand

11 June, 2013

ABB is continuing to expand its ACS880 family of drives which made their debut in 2011. It unveiled several new developments unveiled at the recent Hannover Fair.

These included:

A 690V version of the ACS880 wall-mounted drive with optional IP65 protection. In addition, the power range of cabinet-built single drives is being extended up to 560kW, covering voltages from 400–500V.

•  An IGBT supply unit (ISU) for ACS880 multidrives and multidrive modules. This covers the power range from 300–630kVA and provides regenerative functions for cabinet-built drives. It is said to give the same firm but gentle performance in power control, as ABB's DTC (Direct Torque Control) gives in motor control.

•  A single drive module in power ratings from 200–560kW and voltages from 400–500V. This module is optimised for easy, cost-effective cabinet assembly, and saves both cabinet and floor space.

•  A remote monitoring tool (called Neta-21), that provides access to drives via the Internet or local Ethernet networks. It has a built-in Web server, and is compatible with standard Web browsers, allowing users to configure drive parameters, monitor drive data and faults, and track load levels, run times, energy consumption, I/O data and bearing temperatures of motors connected to the drives.

ABB has also been enhancing the safety functions of the ACS8880 range (part of which is shown above). These developments include:

•  providing Safe torque-off (STO) as standard;

•  offering an easy-to-commission and configure safety function module (FSO-11) that supports five safety functions – SS1, SSE, SBC, SLS and SMS, all to SIL3 / PLe;

•  developing a functional safety calculation program called the Functional Safety Design Tool, that will allow machine-builders to calculate, verify and document the required safety level (SIL/PL) for the safety functions used on a machine; and

•  supporting the ProfiSafe protocol, allowing ACS880 drives to be connected to a safety PLC, such as ABB’s AC500-S, using the FSO-11 module. It will be possible to provide safety data from several drives to the PLC, supporting active safe monitoring in an automation system.

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