Sub-Mounted Braking Resistors; Table 24: Dc Link / Braking Transistor Function Of The 400 V Devices; Table 25: Sub-Mounted Braking Resistors - KEB COMBIVERT F6 Series Instructions For Use Manual

GeNerAL eLecTrIcAL DATA
Device size
Rated DC link voltage @ U
Rated DC link voltage @ U
DC link voltage working voltage range
DC switch-off level "ERROR underpotential"
DC switch-off level "ERROR overpotential"
DC switch-off level braking transistor
Max. braking current
Min. braking resistor value
Braking transistor
Protection function for braking transistor
Protection function braking transistor
(Error GTR7 always on)
DC link capacity
Table 24: DC link / braking transistor function of the 400 V devices
The DC switching level for the braking transistor is adjustable. The default value is the value specified in the
1)
table.
The ON time is additionally limited by the used braking resistor
2)
The feedback signal evaluation monitors the functionality of the braking transistor. The current is switched
3)
off via the internal mains input bridge of the AC supply.

3.3.3 Sub-mounted braking resistors

Technical data of the sub-mounted braking resistors
Braking resistor value
Rated power
Cyclic duration factor referring to
120s @ U
Table 25:
NOTICE
44
= 400V
N
= 480V
N_UL
= 780V
_dc
Sub-mounted braking resistors
Observe the power dissipation of the sub-mounted braking resis-
tors
In braking mode with sub-mounted braking resistors, the power to be
dissipated of the heat sink will be increased.
► Consider the power dissipation of the braking resistors when de-
signing the cooling system.
21
/ V
U
N_dc
U / V
N_dc_UL
/ V
U
IN_dc
/ V
U
UP
U / V
OP
/ V
U
1)
B
/ A
I
B_max
/ Ω
R
B_min
Max. cycle time: 120 s; ED: 50 %
2)
Short-circuit monitoring
Feedback signal evaluation and
3)
current shutdown
C / µF 3300
R / Ω
/ W
P
D
ED / s
22 23 24
565
680
390...780
240
840
780
168
5
3900 5200 6200
8
730
0.9