APPLICATIONS OF Σ-SERIES PRODUCTS
3.8.4 Using Regenerative Units
144
3) When connecting P and N terminals in parallel, be sure to turn all the Servopack power
ON simultaneously. Do not turn any Servopack power ON when connecting P and N ter-
minals in parallel.
4) Multiple servos can share a single MCCB or noise filter. Always select a MCCB or noise
filter that has enough capacity for the total power capacity (load conditions) of those ser-
vos. For details, refer to page 138.
MCCB
Noise filter
3.8.4 Using Regenerative Units
1) “What is a Regenerative Unit?”
A regenerative unit is designed to safely consume electric energy that is generated when
the servomotor is rotated by the load.
Servopack Electric energy
Force
Energy
consumption
Regenerative unit
2) “When is a Regenerative Unit Required?”
Generally, a regenerative unit is not required. In the following cases, however, the user
must determine whether a regenerative unit is required or not:
a) When the motor is used to control a vertical axis.
b) When the motor starts and stops frequently.
3
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