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J
M
Motor moment of inertia
J
G
Gearbox moment of inertia
J
load
Load moment of inertia
n
load
Load speed
i
Gear ratio
η
G
Gearbox efficiency
M
load
Load torque
M
R
Frictional torque
T
Cycle time
A; E
Initial value, final value in time slice Δ
t
i
t
e
ON duration
∆
t
i
Time interval
The effective torque M
eff
must lie below the S1 characteristic.
The maximum torque M
max
is produced during the acceleration operation. M
max
must lie below
the voltage limiting characteristic curve. In summary, the motor is configured as follows:
7R
UT
XH
LQ
1
P
0RWRUVSHHGLQUSP
6
0BPD[
0BPD[IURPWUDYHUVLQJSURILOH
0BHII
QBPHDQ
M_max
Curve of the maximum torque S1
S1 characteristic = M
0
M_eff
Effective torque
●
Points from the traversing profile
n_mean
Mean speed
Figure 3-11
Motor selection for duty cycle
You have defined the characteristic motor values corresponding to the duty cycle.
Configuring
3.3 Configuring the motor
SINAMICS S210 servo drive system
50
Operating Instructions, 12/2017, A5E41702836B AA
Summary of Contents for SIMOTICS S-1FK2
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