Siemens simovert masterdrives

Engineering Information 06.2005
6SE7087-6QX70 (Version AE) Siemens AG
11-42 Compendium Motion Control SIMOVERT MASTERDRIVES
P
Mot
0.6 s 0.3 s 0.6 s
0.6 s 0.3 s 0.6 s
7 s
Lifting Lowering
t
4.97 kW
3.44 kW
1.91 kW
-1.22 kW
-2.52 kW
-3.81 kW
Negative area corresponds to regenerative
operation
Fig. 11-22 Curve of motor power output for lifting and lowering
♦ The maximum DC link current during motor operation during
acceleration upwards is as follows:
I
P
U
Link Inv
Mot
Mot Inv Line
max
max
.
=
⋅⋅⋅ηη135
=
⋅⋅⋅
=
4970
0 89 0 98 135 400
10 55
...
.A
♦ The mean power output of the motor during motor operation is
calculated from the positive characteristic of the motor power output
as follows:
P
PP
t
T
Mot mean
Mot A Mot E
i
=
+
⋅
∑
2
∆
=
⋅⋅+⋅+⋅⋅
=
1
2
497 06 344 03
1
2
191 06
7
0442
.... ..
.kW
♦ The mean DC link current is therefore:
I
P
U
Link mean
Mot mean
Mot Inv Line
=
⋅⋅⋅ηη135.
=
⋅⋅⋅
=
442
0 89 0 98 135 400
0938
...
.A