The matching servodrives, which can be used with either linear or rotary motors, can suppress high-frequency vibrations occurring at two ends of a mechanism, at the same time. The automatic force ripple compensation allows precise positioning.
Yaskawa has improved the Sigma-7 drives’ auto-tuning function which ensures reliable operation without having to adjust the gain. It says that the drive can handle loads up to 30 times larger than the moment of inertia, without vibrating. This performance is not affected by dynamic load variations.
The drives support EtherCat and Mechatrolink communications (with Profinet on the way) and have several built in safety functions. They can be daisy-chained or mounted side-by-side.
The IP67-protected motors, which cover the power range 50W–15kW, are said to produce much less heat than their predecessors. They have the same flange dimensions as the earlier Sigma-5 range.