Lenze m850 Series Project Planning page 20

Information on project planning
Drive dimensioning
Check and select servo motor/inverter combination
Output torque
Output speed
Load-matching factor
for an optimum dynamic performance/
control properties
Checking the motor torques
Acceleration torque
Effective torque
All operating points (● )
below the maximum torque
characteristic of the servo motor/
inverter combination here, M
L,max
be considered
Thermally effective operating point (○ )
below the S1 torque characteristic of
the servo motor
4Rated data
^ 28
4Torque characteristics
^ 37
20
Check
M > M / k
rated eff H
n ≥ n
rated m
Requirement k = 0.5 ... 10
J
Optimum k = 1
J
( )
= + + ´
M M J J
S,z z M B
1
2
M = M
å
S,eff S,z
T
z
must
n [r/min]
Preselection
M
rated
n
rated
k = J / (J + J )
J L M B
p ´ D
2 n
L,z
M
S,z
´ D
60 t
z
´ D t M
z
S,eff
n
L,z
M
S,z
n
m
M / k
S,eff H
Unit
Nm
rpm
Nm