System Description 05.2003
6SE7087-6QX70 (Version AD) Siemens AG
1-2 Compendium Motion Control SIMOVERT MASTERDRIVES
1.2 System description
The control functionality of Motion Control is especially tailored to the
demands of servo-drive engineering. The vector current control enables
fast current injection into the motor windings in conjunction with short
sampling times. The related highly dynamic build-up of the torque
provides a good basis for higher-level closed-loop control circuits.
With the closed-loop current control, it is possible to operate both
synchronous motors and induction motors. Various types of encoders
can be used for sensing the necessary speed and positional signals.
The Motion Control functionality is available both in converter and
inverter modules which are designed for a system voltage range of
380 V – 15 % to 480 V + 10 %.
All units are provided with a comprehensive basic functionality which
can be expanded, if required, by extensive technology and
communication functions by the use of software and hardware options.
This enables the units to be adapted to the most diversified conditions
of service. All closed-loop control functions are implemented with freely
assignable function blocks which can be combined as desired. This
enables the software to be flexibly adapted to various applications.
Menu structures stored in the unit software simplify start-up and
visualization of the drives in conjunction with various operator control
panels. PC-assisted tools enable effective parameter setting and data
security.
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