This is called a position servo loop
and typically consists of a PID (proportional, integral, derivative) filter to generate the motor command value.
Like other products in the DMC-30000 series, the DMC-30016 is higher speed than Galil's prior generation single-axis controllers; the 125 microsecond servo loop
update time is twice as fast and the 15 MHz encoder frequency and 3.
The new controller accommodates position feedback data at rates as high as 10 MHz, and has a servo loop
update time of just 100 microseconds, twice as fast as its predecessor.
Instead of employing 'soil' servo loop
gains to eliminate noise and vibration by de-tuning the system--which is a compromise often faced when retrofitting a drive to an existing installation--users can set up the filters to optimise dynamic performance and minimise settling times.
Jan: Ten years ago, steppers were easier for people because they offered positioning capability without having to close a servo loop
, deal with feedback or shoot PID loops.
This loop filter allows the servo loop
to have very high gain at low frequencies, but stabilizes the loop by limiting the high-frequency gain.
The IPN2220 features include INPROCOMM's novel BB architecture and algorithm design, which is designed for severe multi-path fading and narrow-band interference environments, special channel estimation and phase-timing tracking, analog-to-digital (ADC) and digital-to-analog (DAC) converters, and an automatic gain control (AGC) servo loop
to control the radio AGC.
Typically a 57% reduction in servo loop
time can be achieved when the PXI 3030 Series RF Digitizer with Option 194 is applied to an LTE signal.
A servo loop
, also called a compensator, has the job of driving the motor to a particular position.
Requiring only an external amplifier to be functional, this advanced motion IC provides profile generation, servo loop
closure, PLC-style signal manipulation, and motor signal generation.
The servo loop
can be closed with the addition of a very small absolute encoder, the AE2-64, with 64 absolute pulses per revolution.
Integrated with a temperature control servo loop
, the thermistor can control the SSHP temperature to 0.