Technical data, Rated data operation at rated mains voltage 400 v, 725 v, adjustable – Lenze 8400 protec Manual User Manual
Page 49
Technical data
Rated data
Operation at rated mains voltage 400 V
l
49
EDS84DPS424 EN 5.0
Rated data for internal brake chopper
Switching threshold V
BRmax
: 725 V, adjustable
R
Bmin
[
W]
I
BRmax
[A]
P
BRmax
[kW]
I
BRd
[A]
P
Bd
[kW]
t
Z
[s]
t
on
[s]
t
fp
[s]
Type
Internal brake resistor
E84Dxxx7514
E84Dxxx1524
220
3.3
2.4
0.5
0.05
1)
−
−
−
E84Dxxx3024
E84Dxxx4024
E84Dxxx7524
−
−
−
−
−
−
−
−
External brake resistor
E84Dxxx7514
150
4.8
3.5
1.4
0.9
300
60
−
E84Dxxx1524
150
4.8
3.5
2.9
2.0
300
60
−
E84Dxxx3024
47
15.4
11.2
5.7
3.9
300
60
−
E84Dxxx4024
47
15.4
11.2
7.5
5.2
300
60
−
E84Dxxx7524
47
15.4
11.2
14.1
9.8
300
60
−
R
Bmin
Minimum brake resistance, nominal value ±10 %
I
BRmax
Peak current
P
BRmax
Peak braking power
I
BRd
Continuous current RMS − important for the dimensioning of the cables
P
Bd
Continuous braking power
t
Z
Cycle time, periodic load change with running time and recovery time
t
on
Running time
t
Z
− t
on
Recovery time
t
fp
Maximum running time without initial load and compliance with the recovery
time
1)
Max. heat Q
B
: 3 kWs
Max. power loss in the internal brake resistor P
Bdav
: see table
f
ch
I
a
P
Bdav
[W]
[kHz]
[A]
T
amb
20 °C
30 °C
40 °C
45 °C
E84Dxxx7514
4
2.4
50
47
−
27
1.4
50
41
−
21
8
2.4
48
34
21
−
1.4
36
23
10
−
E84Dxxx1524
4
3.9
42
28
−
8
2.34
50
47
−
27
8
3.9
22
9
0
−
2.34
48
34
21
−
f
ch
Output switching frequency
I
a
Motor current
P
Bdav
Permissible power loss in the internal brake resistor, averaged over 60 s and
dependent on T
amb
(Linear interpolation/extrapolation via T
amb
is permissible. Here, the
application must limit the power loss in the brake resistor to P
Bdav
£ P
Bd
.)
T
amb
Ambient temperature