Siemens TV Converter Box 611 User Manual

Configuring the motor 

 

5.2 Example(s) 

transitional phases between acceleration/deceleration and the resulting angle changes are 

not taken into account. 
Since the areas below the curves for ω (t) are the same in both sections, the following 

applies: 

LQRULQ

LQ

 

The angular velocity ω

MAX

 achieved at t

1/2

 can be determined from the calculated angular 

acceleration: 

LQ

 

The speed n can be calculated from n = ω

MAX

/2π. 

 

 

Note 
1 rad = 180°/π = 57.296 ° 
1 rotation U = 360° or 2 π rad 

 

The following can be calculated with the values specified: 
Angular acceleration α = 52.36 rad/s

2

 

Angular velocity ω

MAX

 = 10.47 rad/s 

Speed n = 100 rpm 
 
The following applies for the required acceleration torque: 
M

a

 = (J + J

m

) • α 

Since the moment of inertia J

m

 for the 1FW6 motor is not known at this stage of the 

configuration process, J

m

 = 0 kgm

2

 must be assumed for the time being. 

M

a

 = 5.1 kgm

2

 • 52.36 rad/s

2

 = 267 Nm 

To accelerate the specified mass, a torque M

a

 of 267 Nm is required. 

M

m

 = M

r

 + M

a

 

M

m

 = 100 Nm + 267 Nm = 367 Nm 

In conjunction with the constant frictional torque M

r

, therefore, the motor torque 

M

m

 = 367 Nm. 

A suitable motor can be selected from the "Built-in torque motors: overview" table in 

accordance with the following criteria: 
Max. torque: at least 367 Nm 
Max. speed (at max. torque): at least 100 rpm 
Suitable motors: 

1FW6090-0PA15-2JC2 (diameter: 230 mm; length: 190 mm) 
1FW6130-0PA05-1JC2 (diameter: 310 mm; length: 90 mm) 
Moment of inertia of motor 1FW6090-0PA15-2JC2: J = 0.0465 kgm

2

 

 

1FW6 Built-in torque motors 

76

 

Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7