E6581442
E-37
5
All 200V VF-AS1 and 400V VF-AS1 with ratings of up to 160kW have built-in dynamic braking transistors
as standard
equipment. If the rating of your inverter falls within this range, connect the resistor, as shown in Figure a) below or
Figure b) on the next page. If your inverter has a power rating of 200kW or more, connect a resistor, as shown in
Figure c).
Connecting an external braking resistor (optional)
a) External braking resistor (with a thermal fuse) (optional)
IM
Motor
R/L1
S/L2
T/L3
U/T1
Three-phase
main circuit
Power supply
PA/+
PB
MCCB
An external braking resistor
(optional)
Inverter
V/T2
W/T3
[Parameter setting]
Title
Function
Adjustment range
Setting value
Dynamic
braking
selection
:Disabled
:Enabled (braking resistance
overload detect)
:Enabled (braking resistance
overload not detect)
Do not connect an external resistor with a resistance (combined resistance) smaller than the minimum
admissible resistance.
For overload protection, be sure to set the parameters
and
properly.
[Parameter setting]
Title
Function
Adjustment range
Setting value
Dynamic
braking
resistance
~
Ω
Any
value
Allowable continuous braking
resistance
~
kW
Any value
Braking resistance overload
time
~
sec.
Set the parameter to
for type PBR*- or
to any value for other
types.
Содержание TOSVERT VF-AS1 Series
Страница 238: ...E6581442 I 7 9 ...
Страница 261: ...E6581442 J 13 10 VFAS1 4200KPC 4280KPC VFAS1 4355KPC 4400KPC 4500KPC ...
Страница 321: ...E6581442 M 3 13 Continued overleaf ...