Siemens SIMODRIVE 611A, Installation And Planning Manual

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3
02.98
1-28
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Siemens AG 1998 All Rights reserved 6SN1197–0AA00 02.98 Edition
SIMODRIVE 611 (PJ)
t
P
P
max
P
n
P
s6
0.4 P
n
4 min
10 min
t
P
P
max
P
n
P
s6
0.4 P
n
10 s
60 s
t
P
P
max
P
n
0.2 s
10 s
t
P
P
n
4 s
10 s
F P
n
F: For all NE modules up to Pn 80 kW, F=1.6
For Pn=120 kW, F=1.4
Peak output duty cycle without pre–loading condition Peak output duty cycle with pre–loading
condition
Peak output duty cycle with pre–loading condition S6 duty cycle with pre–loading condition
Figure 3-2
The following rule of thumb is valid:
1
T
T
0
P
(t)
P
n
2
dt
<
1.03;
P
n
< P
(
t
)
P
max
;
t Ů
[0, T ]
For load duty cycles with a period T 10 s:
1
T
T
0
P
(t)
P
n
2
dt
<
0.90;
For load duty cycles with a period 10 s < T 1 min:
1
T
T
0
P
(t)
P
n
2
dt
<
0.89; For load duty cycles with a period 1 min
<
T 10 min:
P
(t)
= the instantaneous power demand
P
n
< P
(
t
)
P
max
;
t Ů
[0, T ]
P
n
< P
(
t
)
P
max
;
t Ů
[0, T ]
Rated load duty
cycles for NE mo-
dules
3.2.1 Technical data, supply infeed modules