'Safe off' feature now an option for PowerFlex 70 range
Rockwell Automation's DriveGuard safety feature is now available as an
option for its PowerFlex 70 series ac variable speed drives up to 22kW
(400/480V), 18.5kW (600V) and 7.5kW (200/240V). Meeting EN954-1 Category
3 standards, this 'safe off' feature disables the motor until such time
as it is safe to restart. It replaces the traditional two-contactor
safety system and associated wiring, so has the potential to save on
costs and system complexity.