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Toshiba Tosvert VF-AS1 Instruction Manual Page 107

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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)
MCCB
Three-phase
main circuit
Power supply
[Parameter setting]
Title
Function

Dynamic braking selection
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

Dynamic braking resistance
Allowable continuous braking

resistance
Braking resistance overload

time
An external braking resistor
(optional)
PA/+
PB
R/L1
U/T1
S/L2
V/T2
W/T3
T/L3
Inverter
Adjustment range
:Disabled
:Enabled (braking resistance
overload detect)
:Enabled (braking resistance
overload not detect)
Adjustment range
~ Ω
~ kW
~ sec.
E-37
E6581442
Motor
IM
Setting value
Setting value
Any value
Any value
Set the parameter to
 for type PBR*- or
to any value for other
types.
5

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