Lenze 8400 HighLine C

Technical data
Overcurrent operation
4
l
71
EDS84ASC552 EN 8.1
The curves of typical load functions and the simulation of the "Ixt" function are shown in
the following illustration:
t
0
100%
1
0
2
I[%]
aN8
T
2
T
3
T
4
T
1


8400IZ180
Fig. 4−2 Overcurrent capacity in 230/400 V operation at 45° C

Pulse load (15 s cycle)
Calculation equation:
0
Peak current
A @ T
1
)C @ T
2
T
1
)T
2
x 100%
2
Unloading current
T
1
Peak current period
T
2
Unloading current period
 Permanent load (180 s cycle) Calculation equation:
1 Peak current
B @ T
3
)C @ T
4
T
3
)T
4
x 100%
2 Unloading current
T
3
Peak current period
T
4
Unloading current period
I
aNx
Rated value of continuous output
current
15−s cycle 
f = 2 kHz f = 4 kHz f = 8 kHz f = 16 kHz
0 2 0 2 0 2 0 2
I
amax
/I
aN8
[%] 200 75 200 75 200 75 133 50
180−s cycle 
f = 2 kHz f = 4 kHz f = 8 kHz f = 16 kHz
1 2 1 2 1 2 1 2
I
amax
/I
aN8
[%] 150 75 150 75 150 75 100 50
I Tip!
For calculations of application−specific cycles please contact your Lenze contact
person.
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