Dc Injection Braking Settings - Toshiba TOSVERT VF-A5 Instruction Manual

,- ,-,
1_1 , - • , - , -
(Protection Parameters)
_,,_ ·='
,_,,_, _,,_
DC injection braking settings
CID
Id
b
I,-,
I
Motor shaft stationary control
Eo:H::SU:> I b
This function is effective when the motor shaft has stopped and is not to
be
rotated, or when preheating
the motor.
When ~le-I/.;;;--,-,-,,-
...... ,
j is set to
I
to activate motor shaft stationary contorl, DB can be continued at half the
ldb[
I
setting value after normal DB operation. This condition can be maintained as long as ST-CC is not
opened, emergency stop is not engaged, or the power is not turned OFF. To stop this function, disengage
the operating command by one of the methods previously mentioned, and DB will stop.
Output frequency
[Hz]
t
LED display
d b d b
o ,-, (blinking)
\ \
O
-----------;;-------+-------1--
Time [SJ
Output current
[A]
IlobCI
2
CLOSED OPEN
F-CC
OPEN
I
CLOSED ST-CC ._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __. _ _
*
Approximately the same control is possible with the external contact input DC injection braking ON/OFF
selection. (Reter to
G ,- . S 1=
I
If=
*I ( *:
[I
to : [I).) DC injection braking will activate if the output
frequency is less than
Id
b F
I
and ST-CC is shorted, and will continue regardless of the
kt
bf=
I
setting. However, if
Id
b [
I
is set to 60% or higher, depending on the DC injection time, the inverter's
electronic thermal overload protection may active (when using a standard motor).
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