Toshiba Tosvert VF-A5 - Page 86

E6580516
DC injection braking will start when the inverter stop command is issued and the output frequency is less
than ldbF I.
<< Explanation of nonnal
DC injection braking >>
ldbSL I 0 :Normal
Output frequency
[Hz]
ldbF I
0
0
.
---~ .................... ---
.
G)When Id b F I. IF - E ,-, I> reference frequency : DC injection braking is executed.
®When ldbF I> reference frequency >IF - E ,-,I: Motor runs at the commaneded frequency.
When
Id b F I. IF - E ,-, I> reference frequency : DC injection braking is executed.
Note 1) The inverter stop command includes when the reference frequency becomes OHz, or when the
ouput frequency becomes
less than IF - E ,-, I . in addition to the run/stop command.
@When a run command is issued during DC injection braking : DC injection braking is terminated, and
the motor starts running.
<< Explanation of DC injection
braking priority
>>
ldb SL I : : Priority
ldbSL I 0 : Normal
I db SL I : 0
Output frequency ....._ __ -;._~---.
[Hz] I dbl: I
ldbF I
0
Reference frequency
!@
ldbF I
IF-EI") I
0
. .
- -- ------·--------1>~--~----------~-------·1-~
- --+------ --------s~ --l-----------+------- --:-=·
I I I :
CLOSED I
R-CC OPEN "'"· ------...tl..i,,,,,__ _____ .._ ____ _
Time[S]
@During normal forward/reverse run (Id b SL I set to [I ), DC injection braking is not executed, as the
command
is not regarded as an inverter stop command.
@When a reverse run (forward run) command is issued during a forward run (reverse run): DC injection braking
starts when
ldbF I> reference frequency during deceleration.
@When a run command is issued during DC injection braking: DC injection braking has priority.
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