Siemens Simodrive 611 - Page 94

4
05.01
4.2 Current de–rating
4-94
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
X=100% –
(100% – 40%)  (6.3 kHz – 3.2 kHz)
8kHz – 3.2 kHz
å I
n6.3 kHz, 2000 m
= (x  I
nf0
/100%)  x
H
/100% = 12 A
å I
s6.3 kHz, 2000 m
= (x  I
s6f0
/100%)  x
H
/100% = 16 A
å I
max6.3 kHz, 2000 m
= (x  I
maxf0
/100%)  x
H
/100% = 16 A
= 61.25%; X
H
= 83%
Permissible currents of the SIMODRIVE power modules for induction motors
and main spindle drive applications (various S6 load duty cycles, defined, e.g.
S6 load duty cycles listed, e.g. S6-25% å 2.5 min/7.5 min):
Table 4-10 Currents for an inverter clock frequency f
0
=3.2 kHz
PM
module
8 A
*
15 A
*
25 A
*
50 A
**
80 A
**
108 A
**
160 A
**
200 A
**
300 A
**
400 A
**
I
rated
3.0 A 5.0 A 8.0 A 24.0 A 30.0 A 45.0 A 60.0 A 85 A 120 A 200 A
0.7 I
rated
2.1 A 3.5 A 5.6 A 16.8 A 21.0 A 31.5 A 42.0 A 59.5 A 84 A 140 A
I S6-60% 3.0 A 5.0 A 8.0 A 26.0 A 34.0 A 50.0 A 70.0 A 100 A 135 A 225 A
I S6-40% 3.0 A 5.0 A 10.0 A 32.0 A 40.0 A 60.0 A 80.0 A 110 A 150 A 250 A
I S6-30% 3.0 A 5.2 A 10.8 A 32.0 A 42.1 A 62.7 A 86.5 A 113 A 153 A 252 A
I S6-25% 3.0 A 5.4 A 11.5 A 32.0 A 44.2 A 65.0 A 89.2 A 116 A 155 A 253 A
I S6-20% 3.0 A 5.7 A 12.3 A 32.0 A 45.7 A 67.7 A 91.9 A 119 A 159 A 254 A
I S6-10% 3.0 A 6.6 A 14.9 A 32.0 A 48.6 A 72.3 A 97.4 A 123 A 173 A 255 A
I
max
3.0 A 8.0 A 16.0 A 32.0 A 51.0 A 76.0 A 102.0 A 127 A 193 A 257 A
The 0.7I
rated
current has been kept constant.
* Currents are only valid for induction motor applications, analog internal and external cooling.
** Currents are valid for main spindle drive/induction motor applications, analog and for main spindle drive
digital, int. and external cooling.
4 Power Modules