OptoSigma SGSP Series Installation Manual page 10

1-4．Resonance and Hunting of the Stages
A motorized stage will suddenly generate large vibration (noises) at a certain speed
(frequency) range, which can result in missing steps or halting of stage movement in
the extreme case. The cause of this problem is the resonance which is generated by the
coincidence of a driving speed and a characteristic frequency of the mechanical
structure, happened when vibration the pulse-driven motor rotation can produce affects
the body of the motorized stage.
This resonance can be reduced by the following measures:
1. Change driving speeds (frequencies). (Do not use resonance frequencies). If you are
using a micro step driver, stepping angles can be changed in the division settings. Or
change resolutions of electronic gear.
2. Change exciting drive voltage of the motor.
3. Reduce the current settings for motor drivers.
4. Readjust load, or add damper to the motor.
5. Change installation positions.
6. Change servo gains.
Installation
Measures against Resonance
-10-
- 10 -