Hitachi SJ Series, User Manual

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Example 5) When frequency adjustment restarting is
selected ([bb
Example 6) When frequency acquisition restarting is
selected ([bb
Chapter 12
Examples of restarting when resetting
Example 5) When frequency adjustment restarting is
selected ([bb
Example 6) When frequency acquisition restarting is
selected ([bb
Power
supply
FW input
Motor
Frequency
FW input
RS input
Tripped
Motor
Frequency
Inverter
Output
frequency
Output
Chapter 12
Examples of restarting when resetting
Example 5) When frequency adjustment restarting is
selected ([bb-41]=01)
Example 6) When frequency acquisition restarting is
selected ([bb-41]=02)
ON
ON
Frequency
Examples of restarting when resetting
Example 5) When frequency adjustment restarting is
Example 6) When frequency acquisition restarting is
Free running
OFF
[bb-26]
Frequency determined
by [bb
Deceleration rate of
[bb
Examples of restarting when resetting
Example 5) When frequency adjustment restarting is
Example 6) When frequency acquisition restarting is
Free running
Frequency
adjustment
ON
[bb-43]
Deceleration in
accordance with
[bb-44]
Frequency determined
by [bb-47]
Deceleration rate of
[bb-44]
12-24-8
Example 5) When frequency adjustment restarting is
Example 6) When frequency acquisition restarting is
• In the "Reset restarting selection [bb
"01 (frequency adjustment restarting)" allows you to
perform the frequency adjustment restarting when
turning on the power supply again. When "00
(Restarting with 0 Hz)" is set, the operation starts
fr
time for
voltage
• Even when the frequency adjustment restarting is
selected, the "Restarting with 0 Hz" occurs in the
cases shown below.
-
-
-
•
•
•
Ａ
！
Ａ
！
ON
43]
Deceleration in
accordance with
Frequency determined
Deceleration rate of
8
In the "Reset restarting selection [bb
"01 (frequency adjustment restarting)" allows you to
perform the frequency adjustment restarting when
turning on the power supply again. When "00
(Restarting with 0 Hz)" is set, the operation starts
from 0 Hz without waiting for the "Retry stand
time for
instantaneous power failure and insufficient
voltage
[bb-26]."
Even when the frequency adjustment restarting is
selected, the "Restarting with 0 Hz" occurs in the
cases shown below.
When an output frequency is 1/2 of a base
frequency or below
When the induced voltage of the motor quickly
attenuates
When the "Lower limit setting for frequency
adjustment [bb
to or below this set frequency is detected
After the "Retry stand
power failure and insufficient voltage
elapsed, the output starts at a frequency
conforming to the "Constant (frequency) for
frequency acquisition restarting
during a time of the "Constant (voltage) for
restarting [bb
At that time, to reduce the output current with the
"Restarting level of acquisition [bb
deceleration occurs in accordance with the
"Constant (frequency) for res
When the output current lowers below the
"Restarting level of acquisition [bb
acceleration starts. If a trip occurs due to an
excessive current even in this method, lower the
"Restarting level of acquisition [bb
"Excessive current prevention level [bb
When the "Start frequency selection [bb
set to "00 (Frequency at the time of interruption),"
the operation starts at a frequency at the time of
the previous interruption even when a reset
signal is input during retry stand
Ａ
！
Ａ
！
About the inverter function
In the "Reset restarting selection [bb
"01 (frequency adjustment restarting)" allows you to
perform the frequency adjustment restarting when
turning on the power supply again. When "00
(Restarting with 0 Hz)" is set, the operation starts
om 0 Hz without waiting for the "Retry stand
instantaneous power failure and insufficient
26]."
Even when the frequency adjustment restarting is
selected, the "Restarting with 0 Hz" occurs in the
cases shown below.
an output frequency is 1/2 of a base
frequency or below
When the induced voltage of the motor quickly
When the "Lower limit setting for frequency
adjustment [bb-42]" is set, and a frequency equal
to or below this set frequency is detected
After the "Retry stand-by time for
power failure and insufficient voltage
elapsed, the output starts at a frequency
conforming to the "Constant (frequency) for
frequency acquisition restarting
a time of the "Constant (voltage) for
restarting [bb-45]," the motor speed is acquired.
At that time, to reduce the output current with the
"Restarting level of acquisition [bb
deceleration occurs in accordance with the
"Constant (frequency) for res
When the output current lowers below the
"Restarting level of acquisition [bb
acceleration starts. If a trip occurs due to an
excessive current even in this method, lower the
"Restarting level of acquisition [bb
sive current prevention level [bb
When the "Start frequency selection [bb
set to "00 (Frequency at the time of interruption),"
the operation starts at a frequency at the time of
the previous interruption even when a reset
input during retry stand
About the inverter function
In the "Reset restarting selection [bb-41]," selecting
"01 (frequency adjustment restarting)" allows you to
perform the frequency adjustment restarting when
turning on the power supply again. When "00
(Restarting with 0 Hz)" is set, the operation starts
om 0 Hz without waiting for the "Retry stand
instantaneous power failure and insufficient
Even when the frequency adjustment restarting is
selected, the "Restarting with 0 Hz" occurs in the
an output frequency is 1/2 of a base
When the induced voltage of the motor quickly
When the "Lower limit setting for frequency
42]" is set, and a frequency equal
to or below this set frequency is detected
by time for
instantaneous
power failure and insufficient voltage
[bb
elapsed, the output starts at a frequency
conforming to the "Constant (frequency) for
frequency acquisition restarting
[bb-44]." After that,
a time of the "Constant (voltage) for
45]," the motor speed is acquired.
At that time, to reduce the output current with the
"Restarting level of acquisition [bb-43],"
deceleration occurs in accordance with the
"Constant (frequency) for restarting [bb
When the output current lowers below the
"Restarting level of acquisition [bb-43],"
acceleration starts. If a trip occurs due to an
excessive current even in this method, lower the
"Restarting level of acquisition [bb-43]" or the
sive current prevention level [bb
When the "Start frequency selection [bb
set to "00 (Frequency at the time of interruption),"
the operation starts at a frequency at the time of
the previous interruption even when a reset
input during retry stand-by.
About the inverter function
41]," selecting
"01 (frequency adjustment restarting)" allows you to
perform the frequency adjustment restarting when
turning on the power supply again. When "00
(Restarting with 0 Hz)" is set, the operation starts
om 0 Hz without waiting for the "Retry stand-by
instantaneous power failure and insufficient
Even when the frequency adjustment restarting is
selected, the "Restarting with 0 Hz" occurs in the
an output frequency is 1/2 of a base
When the induced voltage of the motor quickly
When the "Lower limit setting for frequency
42]" is set, and a frequency equal
to or below this set frequency is detected
instantaneous
[bb-26]" has
elapsed, the output starts at a frequency
conforming to the "Constant (frequency) for
44]." After that,
a time of the "Constant (voltage) for
45]," the motor speed is acquired.
At that time, to reduce the output current with the
43],"
deceleration occurs in accordance with the
tarting [bb-44]."
When the output current lowers below the
43],"
acceleration starts. If a trip occurs due to an
excessive current even in this method, lower the
43]" or the
sive current prevention level [bb-46]."
When the "Start frequency selection [bb-47]" is
set to "00 (Frequency at the time of interruption),"
the operation starts at a frequency at the time of
the previous interruption even when a reset
About the inverter function
41]," selecting
"01 (frequency adjustment restarting)" allows you to
perform the frequency adjustment restarting when
Even when the frequency adjustment restarting is
42]" is set, and a frequency equal
44]." After that,
45]," the motor speed is acquired.
At that time, to reduce the output current with the
excessive current even in this method, lower the
set to "00 (Frequency at the time of interruption),"
the operation starts at a frequency at the time of