Lenze 8400 protec Manual - Manual (Page 52)

Technical data
Rated data
Operation at a rated mains voltage of 500 V
4
l
52 EDS84DPS424 EN 5.0
Rated data for internal brake chopper
Switching threshold V
BRmax
: 790 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 3.6 2.8 0.5 0.05 1) − − −
E84Dxxx3024
E84Dxxx4024
E84Dxxx7524
− − − − − − − −
External brake resistor
E84Dxxx7514 150 5.3 4.2 1.4 1.2 300 60 −
E84Dxxx1524 150 5.3 4.2 2.9 2.5 300 60 −
E84Dxxx3024 47 16.8 13.3 5.7 4.9 300 60 −
E84Dxxx4024 47 16.8 13.3 14.1 12.2 300 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
1.9 50 47 − 27
1.14 50 41 − 21
8
1.9 48 34 21 −
1.14 36 23 10 −
E84Dxxx1524
4
3.1 42 28 − 8
1.86 50 47 − 27
8
3.1 22 9 0 −
1.86 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