Siemens Simovert Masterdrives Compendium page 907

06.2005
Turning drive
Siemens AG 6SE7087-6QX70 (Version AE)
SIMOVERT MASTERDRIVES
n
Load
M
Load
Motor Gear
Fig. 11-4 Turning drive
♦ Speed under load [rpm]
ω ⋅
60
= load
n
load
⋅ π
2
ω Angular speed of the load [s
load
α Angular acceleration/deceleration of the load [s
b v load ,
♦ Load torque [Nm]
= ⋅ α
M J
load load b v load ,
η
Mech. efficiency of the turning drive
mech
α
has to be applied with the correct sign (accelerate = +,
b v load ,
decelerate = - )
If the deceleration is equal to the acceleration, the load torque is at a
maximum during the acceleration phase.
Compendium Motion Control
ω
Load
J
Load
]
-1
1
⋅
α
sign ( )
η
b v load ,
mech
Engineering Information
α
Load
]
-2
11-7