Lenze 9350 - Rated Data for Braking Units; Electrical Specifications; Brake Resistance and Energy; Physical Characteristics

Technical data
Rated data
Braking units
3
l
21
EDBMB935X EN 8.0
3.3 Rated data
3.3.1 Braking units
Type of braking unit EMB9351 EMB9352
Supply voltage U
N
U
DC
[V] 270 V − 0 % ... 775 V + 0 %
Switching threshold U
Z
1)
U
DC
[V] 375, 725, 765
Peak current for 1.33 s On; 1.67 s Off I
DC
[A] 16 32
Max.continuous current I
DC
[A] 14 (arithm. mean value)
20 (r.m.s. value)
Peak braking power P
Bmax
for U
Z
DC 375 V
P
DC
[kW] 3 12
DC 725 V
P
DC
[kW] 11 23
DC 765 V
P
DC
[kW] 12 25
Continuous braking power
P
Bd
for U
Z
(related to the arithm.
mean value)
DC 375 V
P
DC
[kW] 0.1 5
DC 725 V
P
DC
[kW] 0.1 10
DC 765 V
P
DC
[kW] 0.1 11
Smallest brake resistance
R
Bmin
DC 375 V
R [W] 47 internal 12 ± 10%
DC 725 V
R [W] 47 internal 27 ± 10%
2)
DC 765 V
R [W] 47 internal 27 ± 10%
2)
Maximum energy W
B
W [kWs] 50 (4s On; 500s Off) (external resistor)
Mass [kg] 2.6 2.2
1)
Adjustable (see chapter 5.3.9)
2)
Operation of 2 parallel braking units (master/slave) at 18 W possible. Observe the power
of the resistor (see chapter 5.4.2).
Further information on the selection of the brake resistors or regarding the use of brake
resistors < 27R (see chapter 5.5).