Explanation of Function
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BRD (regenerative breaking) function
This function only operates with the V3000 - 11kW and lower, as they have
the built-in BRD.
This function is to consume regenerative energy from the motor as heat by the
use of an external resistor.
Regeneration occurs when the motor is decelerated to quickly and the motor turns into a generator and
voltage flows back into the Inverter.
To use the BRD function, set following condition.
Set item
Functio
n code
Data Description
0.0
BRD don’t operate.
BRD usage
Ratio
b090
0.1-100.0
The usage ratio of BRD is set by 0.1% unit.
When inverter exceeds the usage ratio, trip.
(t1+t2+t3)
100 second
00
BRD don’t operate.
01
During run: valid (BRD operates.)
During stop: invalid (BRD doesn’t operate.)
Selection
of
BRD
b095
02
During run, stop, valid (BRD operates.)
(Note)
330-380
Units: V In case of 200V class inverter, setting is valid.
BRD ON
Level
b096
(Note)
660-760
Units: V In case of 400V class inverter, setting is valid.
(Note) BRD ON level is the voltage setting of the DC (direct current) voltage of the inverter.
Cooling fan operating selection
You can select whether the fan operates continuously or operates only when the
inverter is in the running operation.
Functio
n code
Data Description
00 Always
run
b092
01
Only during run
However, inverter operates for five minutes
after power ON, and for five minutes after
inverter operation stops.
BRD action
t2
ON ON
ON
100 second
t1
t3
b092:Cooling fan
operation selection
Relation code
X10
Usage ratio (%)
b090: BRD use rate
b095: BRD action selection
b096: BRD on level
Relation code
