3.8 Special Wiring
145
c) When load inertia exceeds the allowable load inertia on the motor side.
d) When the motor rotates at a speed higher than the rated speed (3000 r/min).
a) When motor controls a vertical axis.
Servomotor
Moves
vertically
b) When motor accelerates and
decelerates frequently.
Speed
Speed reference
d) When motor rotates at a speed higher
than 3000 r/min.
Operating
speed
Speed reference
Rated speed
3000 r/min
Time
c) When load inertia is too high.
Load
inertia
Load inertia > Allowable load inertia for servomotor
Servomotor
3) “How can we Determine Whether a Regenerative Unit is Required or Not?”
Using software “regenerative capacity check program” enables the user to easily deter-
mine whether a regenerative unit is required. This software is included as part of Yaska-
wa proprietary software “AC servomotor sizing software,” which is supplied free of
charge. Use this software as necessary.
3
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