
5.FEEDBACK SENSOR SPECIFICATIONS FOR THE αiS/αi SERIES B-65262EN/03
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5.2.5 Cautions in Using a Separate Type Pulsecoder
Pay attention to the following items when using the separate
Pulsecoder.
• Increase the machine rigidity between the servo motor and the
Pulsecoder to minimize mechanical vibration. If the machine
rigidity is low or the structure vibrates, poor performance, over
shoot is likely to occur.
• When the separate Pulsecoder is used, the influence of gear, ball
screw pitch error or table inclination is decreased and the
positioning accuracy and geometrical accuracy (roundness, etc.)
are increased, but the smoothness may deteriorate due to the
elasticity in the machine between the servo motor and the
separate Pulsecoder.
• It is necessary to use the built-in Pulsecoder with a resolution
equal to or finer than that of the separate Pulsecoder.
To connect the separate Pulsecoder to the NC, connect only the
signals described in the connecting manual.
When the other signal is connected, the unit may malfunction.