Dc Link / Braking Transistor Function (Gtr7); Dc Link / Braking Transistor Function Of The 230 V Devices; Figure 7: Block Diagram Of The Energy Flow; Table 37: Dc Link / Braking Transistor Function Of The 230 V Devices - KEB COMBIVERT F6 Series Instructions For Use Manual

GeNerAL eLecTrIcAL DATA

3.4.3 Dc link / braking transistor function (GTr7)

NOTICE
I
IN
Net
Figure 7: Block diagram of the energy flow

3.4.3.1 DC link / braking transistor function of the 230 V devices

Device size
DC link rated voltage @ U
DC link rated 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 resistor
Max. braking current
Min. braking resistor value
Protection function for braking transistor
(GTR7)
DC link capacity
Table 37: DC link / braking transistor function of the 230 V devices
The DC switching level for the braking transistor is adjustable. The default value is the value spec-
1)
ified in the table.
Destruction of the drive converter if the value falls below the
minimum brake resistance value
► The minimum brake resistance value must not fall below!
DC link
Rectifier
Braking
transistor
(GTR7)
Braking
resistor
= 230 V U
N
= 240 V U
N_UL
U
U
U
U
1)
I
B_max
R
C / µF
Inverter
I
B
10
/ V
N_dc
/ V
N_dc_UL
/ V
IN_dc
/ V
UP
/ V
OP
/ V
B
/ A
/ Ω
B_min
No protection function available
1410
I
N
Motor
12 13 14
325
339
240...373
216
400
380
21.5 33.6
19 12
tbd tbd tbd
51