Siemens simovert masterdrives

Engineering Information 06.2005
6SE7087-6QX70 (Version AE) Siemens AG
11-30 Compendium Motion Control SIMOVERT MASTERDRIVES
M
Mot
31.03 Nm
3.21 Nm
-19.83 Nm
0.25 s 1 s 0.25 s
3.5 s
t
Fig. 11-15 Torque characteristic for forwards travel
♦ The effective motor torque is obtained from the torque characteristic
as follows:
M
Mt
T
eff
Mot i i
=
⋅
′
∑
2
∆
=
⋅+ ⋅+ ⋅
=
3103 0 25 3 21 1 1983 0 25
35
10
222
... ..
.
Nm
♦ By using the travel curve, which is proportional to the speed, the
mean motor speed is obtained:
n
nn
t
T
mean
AE
i
=
+
⋅
′
∑
2
∆
=
⋅+ ⋅+ ⋅
=
2182 7
2
0 25 2182 7 1
2182 7
2
025
35
779 5
.
..
.
.
.
.rpm