YASKAWA SGM H Series User Manual page 245

Servomotor
Model
-1
SGMGH (1500 min
-1
SGMGH (1000 min
SGMSH
SGMDH
(4) Overhanging Loads
A servomotor may not be operated with an overhanging load, which tends to continuously rotate the motor. Fig.
4.1 shows a typical example of such a load.
• DO NOT use the servomotor with the Vertical Axis Motor Drive without Counterweight
• DO NOT use the servomotor with the Feeding Motor Drive
Servomotor
Servomotor rotated repeatedly at a
constant speed to maintain the tension.
• Never operate servomotors with an overhanging load. Doing so will cause the SERVOPACKs' regenerative
IMPORTANT
brake to be applied continuously and the regenerative energy of the load may exceed the allowable range
causing damage to the SERVOPACK.
• The regenerative brake capacity of the SGDM SERVOPACKs is rated for short-term operation
approximately equivalent to the time it takes to decelerate to a stop.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
4.5 SERVOPACK Overload Characteristics and Allowable Load Moment of Inertia
Allowable Load Moment of Inertia
Capacity Range
(Rotor Moment of Inertia Ratio)
450 W to 15 kW
)
300 W to 5.5 kW
)
1.0 kW to 5.0 kW
2.2 kW to 4.0 kW
Servomotor
Tension
Servomotor
Fig 4.1 Examples of Overhanging Loads
×
5
×
5
×
5
×
5
4
4-15