Toshiba TOSVERT VF-AS1 Instruction Manual page 113

c) VFAS1-6200KPC or more
Three-phase
main circuit
power supply
[Note 1]
Power supply
5
Note 1: Connection when using an MCCB with a top coil instead of an MC.
[Parameter setting]
Title

* As a last resort to prevent fire, be sure to connect a thermal relay (THR). Although the inverter has a means of
preventing overload and overcurrent to protect the braking resistor, the thermal relay is activated in case the
protection function fails to work. Select and connect a thermal relay (THR) appropriate to the capacity
(wattage) of the braking resistor.
- Warning -
In the above circuit, the MC in the main circuit is turned off if an inverter's protective function is activated, and
consequently no trip message is displayed. The inverter recovers from a trip if it is turned off. So, check the trip
history record after turning off the inverter and then on again. ⇒ Refer to Section 8.2.1.
To prevent a trip condition from being cleared by turning off the power and then on again, change the setting of
the inverter trip retention selection parameter . ⇒ Refer to Section 6.33.2.
* If no power supply is
provided for the control circuit
MCCB
MC
Depression
transformer
200V
Fuse
TC
Function
Dynamic braking selection
TH - Ry
PA
PA/+
R/L1
S/L2
T/L3
Inverter
MC FLB
Surge killer
FLC
FLA
Adjustment range
:Disabled
:Enabled (braking resistance
overload detect)
:Enabled (braking resistance
overload not detect)
E-40
E6581528
An external braking resistor (optional)
PBR
PB
Dynamic braking unit (optional)
PB7
PC/-
Motor
U/T1
V/T2 IM
W/T3
F
Forward run/stop
Reverse run/stop
R
CC
Example of setting
