Toshiba TOSVERT VF-AS1 Instruction Manual page 111

VF-AS1 with ratings of up to 160kW have built-in dynamic braking transistor 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)
Three-phase
main circuit
Power supply
5
[Parameter setting]
Title

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



MCCB
PA/+
R/L1
S/L2
T/L3
Function
Dynamic braking selection
Function
Dynamic braking resistance
Allowable continuous braking
resistance
Braking resistance overload
time
An external braking resistor
(optional)
PB
U/T1
V/T2
W/T3
Inverter
Adjustment range
:Disabled
:Enabled (braking resistance
overload detect)
:Enabled (braking resistance
overload not detect)
Adjustment range
~ Ω
~ kW
~ sec.
E-38
E6581528
Motor
IM
Example of setting

Example of setting
Any value
Any value
Set the parameter to
 for type PBR*- or
to any value for other
types.