Toshiba Tosvert VF-AS1 Instrukcja Użytkownika Strona 102

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E6581301
E-36
5
All 200V VF-AS1 and 400V VF-AS1 with ratings of up to 160kW have built-in dynamic braking resistors 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
V
W
Three-phase
main circuit
Power supply
PA/+
PB
MCCB
A
n external braking resisto
r
(optional)
Inverter
[Parameter setting]
Title Function Adjustment range Example of setting
RD Dynamic braking selection
:Deselect
:Select (bracking resistance
overload detect)
: Select (bracking 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 RDT and RDER properly.
[Parameter setting]
Title Function Adjustment range Example of setting
RDT Dynamic braking resistance ~ Any value
RDER
Allowable continuous braking
resistance
~kW Any value
H
Braking resistance overload
time
~ sec.
Set the parameter to
 for type PBR*- or to
any value for other
types.
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