5
05.01
5.4 Current reduction/derating
5-129
©
Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
Factor XT, diagram only for illustration, calculation example in Chapter 5.4.4.
S
for MSD–IM and MSD–SRM or IM operation (sensorless)
110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
Power in %
Inverter pulse frequency in kHz
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
X
L
= 50%
X
L
= 55%
Fig. 5-6
Power as a function of the inverter pulse frequency for MSD–IM and MSD–RSM
S
for FD
110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
Power in %
Inverter pulse frequency in kHz
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
X
L
= 50%
X
L
= 55%
Fig. 5-7
Power as a function of the inverter pulse frequency for FD
Pulse frequency–
dependent
derating
5 Power Modules
10.04
05.08