7 - 12
7. SPECIAL ADJUSTMENT FUNCTIONS
(4) Vibration suppression control manual mode
Vibration suppression control can be set manually by setting the vibration suppression control vibration
frequency (parameter No. PB19) and the vibration suppression control resonance frequency (parameter No.
PB20) after measuring work side vibration and device shake using an external measuring instrument.
(a) When a vibration peak can be measured using an external measuring instrument
1Hz
Gain characteristic
Phase
-90deg.
100Hz
Vibration suppression control
vibration frequency setting
(Anti-resonance frequency)
Parameter No. PB19
Vibration suppression
control resonance
frequency setting
Parameter No. PB20
Resonance of more
than 100Hz is not the
target of control.
(b) When vibration can be measured using an external measuring instrument
Motor end vibration
(Droop pulses)
Position command frequency
External acceleration pick signal, etc.
Vibration suppression control
vibration frequency
Vibration suppression control
resonance frequency
Set the same value.
Vibration cycle [Hz]
Vibration cycle [Hz]
POINT
When the load side vibration does not travel to the motor side, setting the motor
side vibration frequency does not have any effect.
When vibration frequency (anti-resonance frequency) and resonance frequency
can be measured using an external measuring instrument, setting different
values in parameters No. PB19 and No. 20 separately improves the vibration
suppression performance better rather than setting the same value.
Summary of Contents for MELSERVO-JN Series
Page 31: ... 22 MEMO ...
Page 49: ...2 6 2 INSTALLATION MEMO ...
Page 181: ...5 30 5 DISPLAY AND OPERATION SECTIONS MEMO ...
Page 199: ...6 18 6 GENERAL GAIN ADJUSTMENT MEMO ...
Page 303: ...11 46 11 OPTIONS AND PERIPHERAL EQUIPMENT MEMO ...
Page 351: ...12 48 12 SERVO MOTOR MEMO ...
Page 445: ...13 94 13 POSITIONING MODE MEMO ...