Dc Link / Braking Transistor Function; Figure 7: Block Diagram Of The Energy Flow; Table 20: Dc Link / Braking Transistor Function Of The 400 V Units - KEB COMBIVERT S6 Instructions For Use Manual

UNIT DATA

3.3.7 Dc link / braking transistor function

Unit 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"
Rated current DC @ U
in_dc
Rated current DC @ U
in_dc
Rated current DC @ U
out_dc
Rated current DC @ U
out_dc
DC switching level braking resistor
Max. braking current
Min. brake resistance value
DC link capacity
Protection function for braking transistor (GTR7)
Table 20: DC link / braking transistor function of the 400 V units
The DC switching level for the braking transistor is adjustable. The default value is the value spec-
1)
ified in the table.
No protective function, =>
2)
NOTICE
I
in
Net
Figure 7: Block diagram of the energy flow
= 400 V
N
= 480 V
N
= 565 V
= 680 V
= 565 V
= 680 V
"Wiring of an intrinsically safe braking resistor".
Destruction of the drive converter if the value has fallen below the
minimum brake resistance value
► The minimum brake resistance value must not fall below!
Rectifier
DC link
Braking
transistor
(GTR7)
I
out_dc
Braking
DC Out
resistor
Activation of the braking transistor function
The function must be activated with parameter "is30 braking transistor func-
tion" in order to use the braking transistor (GTR7).
Further information can be found in the download area of
the search term „S6 Programming
U / V
N_dc
/ V
U
N_dc_UL
U / V
in_dc
U / V
UP_dc
U / V
OP_dc
I / A
in_dc
I / A
in_dc_UL
I / A
out_max_dc
/ A
I
out_max_dc_UL
U / V
1)
B_dc
I / A
Bmax
R / Ω
Bmin
C / uF
2)
Inverter
I I
B
in_dc
DC in
Manual".
12 13 14
565
672
260...750 ±0
240
840
16 20 26
13 19 22
16 20 26
13 19 22
780
28 34 34
33 25 25
470 560 680
—
I
N
Motor
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