DC SERVO SYSTEMS - sanyo denki web catalogue

Improved Systems Precision and Shortened Cycle Time
High Response
A 4th-order notch filter reduces phase delay to suppress
mechanical resonance and improve velocity response of
equipment.
Vibration-damping Control
With feed-forward vibration suppression control, vibrations
at the processing point and base of a machine can be
suppressed through simple tuning procedures. Up to 4
types of vibration control frequencies can be selected.
Position deviation during stop
With vibration suppression control
Without vibration suppression control
10
Gain (dB)
0
-10
-20
With vibration
suppression control
Without vibration
suppression control
100ms/div
-30
-40
1
5 10 50 100 500 1000
Frequency (Hz)
17-bit absolute encoder is required.
Shorter Position Settling Time
A new algorithm drastically shortens positioning settling
time for equipment.
Disturbance Suppression
It is possible to control impacts from other axes in case
of multiaxial constitution, by using the new disturbance
observer with extended applicable frequency.
Disturbance observer function ON
Oscillation waveform
of direct drive section
Disturbance
Position deviation
Disturbance observer function OFF
Oscillation waveform
of direct drive section
Position complete signal
Settling time (0ms)
Disturbance
Example of positioning settling time
in highly rigid machinery
5ms/div
17-bit encoder is required.
3