Lenze 8400 - Manual (Page 51)

Technical data
Rated data
Operation at a rated mains voltage of 500 V
4

51 EDS84ASC552 EN 9.1
Rated data for internal brake chopper
Switching threshold V
BRmax
: 790 V, adjustable
R
Bmin
[]
I
BRmax
[A]
P
BRmax
[kW]
I
BRd
[A]
P
Bd
[kW]
t
Z
[s]
t
on
[s]
t
fp
[s]
Type
E84AVxxx3714
390 2.0 1.6 2.0 1.6 -  -
E84AVxxx5514 390 2.0 1.6 2.0 1.6 -  -
E84AVxxx7514 390 2.0 1.6 2.0 1.6 -  -
E84AVxxx1124 180 4.4 3.5 4.4 3.5 -  -
E84AVxxx1524 180 4.4 3.5 4.4 3.5 -  -
E84AVxxx2224 150 5.3 4.2 5.3 4.2 -  -
E84AVxxx3024xxS 82 9.6 7.6 9.6 7.6 -  -
E84AVxxx3024xx0 82 9.6 7.6 9.6 7.6 -  -
E84AVxxx4024 47 16.8 13.3 13.0 10.3 -  -
E84AVxxx5524 47 16.8 13.3 13.0 10.3 -  -
E84AVxxx7524 27 29.3 23.1 29.3 23.1 -  -
E84AVxxx1134 27 29.3 23.1 29.3 23.1 -  -
E84AVxxx1534 18 43.9 34.7 43.9 34.7 -  -
E84AVxxx1834 15 52.7 41.6 52.7 41.6 -  -
E84AVxxx2234 15 52.7 41.6 52.7 41.6 -  -
E84AVxxx3034 7.5 105.3 83.2 105.3 83.2 -  -
E84AVxxx3734 7.5 105.3 83.2 105.3 83.2 -  -
E84AVxxx4534 7.5 105.3 83.2 105.3 83.2 -  -
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
Note on brake chopper operation according to cUL/CSA
Brake chopper operation according to cUL/CSA is ensured if the running time t
on
is not
higher than 30% compared to the cycle time t
z
.
The condition is fulfilled if the continuous braking power P
d
is not higher than 30%
compared to the peak braking power P*
BRmax
made possible through the resistor R
B
used:
t
on
t
z
≤ 0.3 ;
P
d
P :
BRmax
≤ 0.3 ; P :
BRmax
=
U
BRmax
2
R
B
R
B
Brake resistor used (nameplate data)
V
BRmax
Switching threshold of the inverter (725 V at V
LN
= 400 V, 790 V at V
Lr
= 500 V)
VLr Rated mains voltage
P*
BRmax
Peak braking power of the resistor used
P
d
Continuous braking power of the load to be braked (dependent on the
application)
t
on
Running time
t
Z
Cycle time (”duty cycle”)