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24 April, 2018

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32-bit drive enters production
Published:  21 April, 2008

Gefran used the recent Drives & Controls Show to launch its long-awaited SieiDrive ADV200 AC inverters, which use field-oriented control (FOC) and are based on 32-bit microcontrollers. The drives, which have been seen in prototype form at several European trade fairs in recent years, have now entered production, and cover power ratings from 0.75kW–1.5MW, 400–480V AC, in four modular frame sizes.

Gefran inverters

The drives offer a choice of open- or closed-loop feedback, as well as flux vector or V/f control, and are said to regulate speed to an accuracy of ±0.01%. Expansion slots allow up to three encoder interfaces, fieldbus interfaces or I/O expansion cards to be mixed in any combination. Fieldbus options include CANopen, DeviceNet, Profibus-DP, as well as Gefran’s own GD-Net real-time fast Ethernet, which can be used to provide high-speed synchronisation between axes.

DC choke and input filters and removable easy-access wiring terminations are standard, and a dynamic braking module can be added to drives up to 75kW. A safety option card allows a motor to be disabled without using a contactor, in compliance with EN954-1, Cat 3.

A removable keypad with a backlit four-line text display can be used for to program parameters. A software configuration tool with an integrated oscilloscope and a simple PLC is also available for fast set-up and application commissioning. For more demanding machine control applications, the ADV200 can be supplied with an IEC61131-3 PLC and Gefran’s MDPLC development software.

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