Precautions On Load - Sanyo SUPER BL P5 Manual

9. SPECIFICATIONS
9.1.4

Precautions on Load

(1) Negative load
The Servo Amplifier cannot perform such negative load operation as causes the motor to rotate
continuously.
(Examples)
•
Downward motor drive (when no counterweight is provided).
•
Use like a generator, for example, the wind-out spindle of a winder.
When applying the amplifier to a negative load, consult us.
(2) Load inertia (J
When the Servo Amplifier is used with a load inertia exceeding the allowable load inertia calculated in
terms of the motor shaft, a main circuit power overvoltage detection or regenerative error function may
be activated at the time of deceleration.
In this case, the following measures must be taken.
① Lower the current limit.
② Make the acceleration/deceleration time longer (slow down).
③ Reduce the maximum motor speed to be used.
④ Install an external regenerative resistor (optional).
For details, ask us for information.
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