SIEMENS
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Siemens MD 31.1 · 2016
Configuring guide
Configuring SIP planetary geared motors and SIP planetary gear units
Configuring sequence – selection according to power output
2
■
Configuring
(continued)
Selection according to power output – planetary geared motor
(for selection according to torque,
see page 2/5
)
Selection sequence
Notes, references
• Power rating of driven machine
P
2
or
• Motor nominal power
P
N
• Speed of driven machine
n
2
Primary input variables
Planetary geared motor
(gear unit without
motor: see page 2/4)
Type of drive concept
Motor power output
at given power rating
P
2
:
•
P
N
motor nominal power – definition
page 2/9
•
P
2
required motor power – definition
page 2/9
•
n
2
speed of driven machine – definition
page 2/8
Specification of service factor
f
B
–
selection according to application:
or defined according to customer requirements
•
f
B
service factor – definition
page 2/10
•
f
1
factor for driven machine – definition
page 2/9
•
f
2
factor for prime mover – definition
page 2/9
•
f
1
values:
page 2/11
Selection of shaft arrangement of geared motor
• Coaxial or at right angles
• Summary of basic types:
page 1/2
Select a geared motor with
P
N
,
n
2
, and
f
B
• Coaxial shaft arrangement:
Chapter 3
• Right-angle shaft arrangement:
Chapter 4
Thermal capacity check
The thermal limits of application are determined by the input drive
assembly (SIMOGEAR geared motor).
As a general rule, the solutions offered in
Chapters 3 and 4
are safe
and reliable in operation up to a motor speed of 1500 rpm and an
ambient temperature of up to 40 °C.
See Catalog MD 50.1
for configuring guide
Calculation of the maximum permissible torque
The maximum permissible torque must not be exceeded by torques
produced during peak operation, startup or braking.
•
T
max
maximum torque – definition
page 2/8
•
T
2N
gear unit nominal torque – definition
page 2/8
•
T
2N
values:
page 2/12
•
f
3
peak torque factor – definition
page 2/9
•
f
3
values:
page 2/12
• Factors for starting torque:
from page 8/7 onwards
Read article numbers from table
• Coaxial shaft arrangement:
from page 3/3 onwards
• Right-angle shaft arrangement:
from page 4/3 onwards
Complete the article number
1. Output shaft geometry
2. Type of installation
3. Selection of mounting position
• Output shaft geometry:
-
Selection guide:
page 2/7
-
Dimensions of coaxial version:
page 3/96
-
Dimensions of right-angled version:
page 4/81
• Installation:
see pages 10/2 to 10/5
• Mounting position:
-
Overview,
see pages 1/4 and 1/5
-
Ordering data,
see pages 10/7 and 10/8
Selection of other options and properties
See Chapter 9
P
N
≥
P
2
ƒ
B
= ƒ
1
× ƒ
2
1)
T
max
=
T
2N
ƒ
3
1)
f
2
= 1 for electric motors.
© Siemens AG 2016