Yaskawa Large Capacity Sigma II Series - Manual (Page 296)

7 Servo Selection and Data Sheets
7.3.6 Overhanging Load
7-20
7.3.6 Overhanging Load
A servomotor may not be operated with an overheating load, i.e., a load which tends to con-
tinuously rotate the motor. Fig.7.3 shows a typical example of such a load.
Fig. 7.3 Examples of Overhanging Loads
Doing so will cause the SERVOPACK's regenerative brake to be applied continuously and the regener-
ative energy of the load may exceed the allowable range causing damage to the SERVOPACK. The
regenerative brake capacity of the SGDH SERVOPACKs is rated for short-term operation approxi-
mately equivalent to the time it takes to decelerate to a stop.
y Vertical Axis Motor Drive without Counterweight
y Feeding Motor Drive
Servomotor
Tension
Servomotor
Servomotor rotated repeatedly at a
constant speed to maintain tension.
Servomotor
IMPORTANT