4
02.98
1-67
Siemens AG 1998 All Rights reserved 6SN1197–0AA00 02.98 Edition
SIMODRIVE 611 (PJ)
All of the specified load currents are valid up to 1000 m installation altitudes. For
installation altitude > 1000 m, the load currents must be de–rated according to
the diagram below.
100 %
0
1000
2000
Installation altitude (m)
80 %
60 %
40 %
20 %
0 %
3000 4000 5000
X
H
P
n
altitude
=x
H
P
n1000m
/100%
P
n
altitude
=x
H
P
s61000m
/100%
P
max.
altitude
=x
H
P
max.
1000m
/100%
Figure 4-3
Caution: The currents I
n
, I
s6
and I
max
must be reduced in the same way.
å I
n
alt.
= x
H
I
n1000
m
/100%
å I
s6
alt.
= x
H
I
s61000
m
/100%
å I
max
alt.
= x
H
I
max1000
m
/100%
Example: PM (power module) 50A: with MSD analog control: selected inverter
clock frequencies 6.3 kHz; installation altitude 2000 m
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.
S6-25% å 2.5 min/7.5 min):
Table 4-3 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
A3.0 A5.0 A8.0 A24.0 A30.0 A45.0 A60.0 A85 A120 A200
0.7 I
rated
A2.1 A3.5 A5.6 A16.8 A21.0 A31.5 A42.0 A59.5 A84 A140
I S6-60% A3.0 A5.0 A8.0 A26.0 A34.0 A50.0 A70.0 A100 A135 225 A
I S6-40% A3.0 A5.0 A10.0 A32.0 A40.0 A60.0 A80.0 A110 150 A 250 A
I S6-30% A3.0 A5.2 A10.8 A32.0 A42.1 A62.7 A86.5 A113 A153 A252
I S6-25% A3.0 A5.4 A11.5 A32.0 A44.2 A65.0 A89.2 A116 A155 A253
I S6-20% A3.0 A5.7 A12.3 A32.0 A45.7 A67.7 A91.9 A119 A159 A254
I S6-10% A3.0 A6.6 A14.9 A32.0 A48.6 A72.3 A97.4 A123 A173 A255
I
max
A3.0 A8.0 A16.0 A32.0 A51.0 A76.0 A102.0 A127 A193 A257
The 0.7I
rated
current has been kept constant.
* Currents are only valid for induction motor applications, analog internal and externalcooling.
Currents are valid for main spindle drive/induction motor applications, analog and for main spindle drive
digital, int. and ext. cooling.
Current reduction
as a function of
the installation al-
titude
4.1 Technical data