Siemens Simovert Masterdrives Compendium page 930

Engineering Information
11-30
M 31.03 Nm
Mot
3.21 Nm
0.25 s 1 s
-19.83 Nm
Fig. 11-15 Torque characteristic for forwards travel
♦ The effective motor torque is obtained from the torque characteristic
as follows:
∑
2
⋅ ∆
M
Mot i
=
M
eff
'
T
2
⋅ +
3103 . 0 25 3 21 1 19 83 .
=
♦ By using the travel curve, which is proportional to the speed, the
mean motor speed is obtained:
+
n n
∑
A E
2
=
n
mean
'
T
2182 7 .
⋅ +
0 25 2182 7 1 .
2
=
0.25 s
3.5 s
t
i
2 2
⋅ + ⋅
. . 0 25 .
=
3 5 .
⋅ ∆
t
i
2182 7 .
⋅ + ⋅
. 0 25 .
2
3 5 .
6SE7087-6QX70 (Version AE)
Compendium Motion Control
06.2005
10 Nm
=
779 5 . rpm
Siemens AG
SIMOVERT MASTERDRIVES
t