Using Regenerative Units; What Is A Regenerative Unit?; When Is A Regenerative Unit Required? - YASKAWA SGM series User Manual

APPLICATIONS OF Σ-SERIES PRODUCTS

3.8.4 Using Regenerative Units

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3.8.4 Using Regenerative Units
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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

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
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.
Electric energy
Noise filter
Force