Two built–in high bandwidth servo control topology options
- Any Servo Application
Sampling rate is an important aspect in servo drives and their quality is usually characterized by performance parameters such as, servo drive bandwidth and controller sampling time. Moreover, a system may become unstable if the sampling frequencies are too low.
According to the Nyquist criterion, sampling frequency should be at least twice as high as the error signal bandwidth.
Elmo’s intelligent servo drive has two high bandwidth servo control topology options:
In this mode, the current, position and velocity loop controllers have the same frequency bandwidth (sample time):
In this mode, the current loop controller has double the frequency bandwidth (sample time) than the position/velocity control loop.