Information On The Motor-Drive Converter Selection, Msd Analog - Siemens SIMODRIVE 611 Planning Manual

05.01
4.2.1 Information on the motor–drive converter selection, MSD analog
Various inverter clock frequencies can be parameterized; observe the current
de–rating.
Inverter clock frequency for MSD analog f
of the inverter clock frequency f
Table 4-5 Currents as a function of the inverter clock frequency
In/Is6/Imax
in A
PM Code f
T
type No. 3.20 kHz
LT 50A 6 24/32/32
LT 80A 7 30/40/51
LT 108A 13 45/60/76
LT 120A 8 45/60/76
LT 160A 9 60/80/102
LT 200A 10 85/110/127
LT 300A 11 120/150/193
LT 400A 12 200/250/257
up to including FW 2.xx
For special motors with a lower leakage induction, it may be necessary to pro-
vide a series reactor and/or increase the inverter clock frequency of the drive
converter. From experience, motors with low leakage induction are those which
can achieve high stator frequencies (maximum motor stator frequency
or motors with a higher rated current (rated current
I
I
I
I
I
n
n
Dimensioning the series reactor, refer to Section 6
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
In/Is6/Imax In/Is6/Imax In/Is6/Imax
in A in A
f f
T T
4.70 kHz 6.30 kHz
20/26/26 15/20/20
26/34/44 21/28/36
39/52/65 32/43/54
39/52/65 32/43/54
51/68/86 41/54/69
73/95/109 60/78/90
101/127/163 81/102/131
169/211/217 135/169/174 104/130/134
from FW 3.0
Rated module current at the converter pulse frequency
N
(standard value: f 3.2 kHz)
0
Minimum motor current
min
Max. motor current for an S6 load duty cycle
S6
Short–time limiting current of the module used in A
Short
No–load motor current in A
0Mot
Speed at the start of field weakening
FS
Max. motor speed
max
4.2 Current de–rating
=3.2 kHz: The currents are a function
0
.
T
In/Is6/Imax In/Is6/Imax
in A in A in A
f f
T T
7.80 kHz 2.80 kHz 3.90 kHz
10/14/14 24/32/32 22/29/29
17/23/29 30/40/51 28/37/48
26/34/43 45/60/76 42/56/71
26/34/43 45/60/76 42/56/71
31/42/53 60/80/102 56/74/95
48/63/72 85/110/127 79/103/119
62/78/101 120/150/193 111/139/179
200/250/257 185/232/238
85 A).
>
rms
4 Power Modules
In/Is6/Imax In/Is6/Imax
in A in A
f f f
T T T
5.00 kHz 5.90 kHz
19/25/25 16/21/21
25/33/42 22/30/38
37/50/63 34/45/57
37/50/63 34/45/57
49/65/83 43/58/73
71/91/106 63/82/95
98/122/157 86/108/139
163/203/209 144/180/185
300 Hz)
>
rms
4-89
4