51
GeNerAL eLecTrIcAL DATA
3.4.3 Dc link / braking transistor function (GTr7)
NOTICE
Destruction of the drive converter if the value falls below the
minimum brake resistance value
►
The minimum brake resistance value must not fall below!
Net
Rectifier
DC link
Inverter
Motor
Braking
transistor
(GTR7)
Braking
resistor
I
IN
I
N
I
B
Figure 7:
Block diagram of the energy flow
3.4.3.1 DC link / braking transistor function of the 230 V devices
Device size
10
12
13
14
DC link rated voltage @
U
N
=
230 V
U
N_dc
/ V
325
DC link rated voltage @
U
N_UL
=
240 V
U
N_dc_UL
/ V
339
DC link voltage working voltage range
U
IN_dc
/ V
240...373
DC switch-off level „Error! Underpotential“
U
UP
/ V
216
DC switch-off level „Error! Overpotential“
U
OP
/ V
400
DC switch-off level braking resistor
1)
U
B
/ V
380
Max. braking current
I
B_max
/ A
21.5
33.6
Min. braking resistor value
R
B_min
/ Ω
19
12
Protection function for braking transistor
(GTR7)
No protection function available
DC link capacity
C
/ µF
1410
tbd
tbd
tbd
Table 37:
DC link / braking transistor function of the 230 V devices
1)
The DC switching level for the braking transistor is adjustable. The default value is the value spec
-
ified in the table.
Summary of Contents for COMBIVERT 10F6 Series
Page 2: ......
Page 82: ...82 NOTES...
