Mitsubishi MELSEC-F Training Manual page 22

Positioning Control
In the latest AC servo systems, conventional weak points have been improved as follows.
- Though the latest systems are completely digital, they are equipped with parameters in
conformance to diversified mechanical specifications and electrical specifications so that
simple setting is possible.
- As frequent operation is enabled by a low inertia motor, the maximum torque is
increased and the system can be applied to diversified machines.
- The latest systems are equipped with an auto tuning function, with which the servo
amplifier automatically detects the load inertia moment and adjusts the gain. This is
possible even if the load inertia moment is unknown.
Aspects described below are now incorperated to AC servo systems which offer marked
improvements from previous products.
In FA work place, a downsized AC servo
system occupying less space is required!
In accordance with sever operation
conditions, a tougher AC servo system is
required!
An AC servo system anyone can handle
easily is required! Even if the
performance is good, the AC servo
system cannot be accepted if it is difficult
to handle.
An AC servo system giving sufficient cost
performance is required!
Positioning by AC Servo System 2
Compact and light servo
system
Robust servo system
Easy servo system
Good cost performance servo
system
2-2