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136
Motor brake and stop operation
(1) Set the brake sequence mode
Select Advanced magnetic flux vector control or General-purpose magnetic flux vector control.
The brake sequence function is valid only when the External operation mode, External/PU combined operation mode 1 or
Network operation mode is selected.
Set "7 or 8" (brake sequence mode) in
Pr. 292
.
To ensure more complete sequence control, it is recommended to set "7" (brake opening completion signal input) in
Pr. 292
.
Set "15" in any of
Pr. 178 to Pr. 184 (input terminal function selection)
and assign the brake opening completion signal (BRI) to
the input terminal.
Set "20 (positive logic)" or "120 (negative logic)" in any of
Pr. 190 to Pr. 192 (output terminal function selection)
and assign the
brake opening request signal (BOF) to the output terminal.
(2) With brake opening completion signal input (
Pr. 292
= "7")
When the start signal is input to the inverter, the inverter starts running. When the internal speed command reaches the
value set in
Pr. 278
and the output current is not less than the value set in
Pr. 279
, the inverter outputs the brake opening
request signal (BOF) after the time set in
Pr. 280
has elapsed.
When the time set in
Pr. 281
elapses after the brake opening completion signal (BRI) was activated, the inverter increases
the output frequency to the set speed.
When the inverter decelerates to the frequency set in
Pr.282
during deceleration, the inverter turns OFF the BOF signal and
decelerates further to the frequency set in
Pr.278
. After electromagnetic brake operation completes and inverter recognizes
the turn OFF of BRI signal, the inverter holds the frequency set in
Pr.278
for the time set in
Pr.283
. And after the time set in
Pr.283
passes, the inverter decelerates again. The inverter finally stops when its frequency reaches to
Pr.13 Starting
frequency
setting or 0.5Hz, whichever is lower.
STF
ON
Output current
Brake opening request
(BOF signal)
ON
Electromagnetic brake operation
Opened
Closed
Closed
Time
Brake opening completion
(BRI signal)
ON
Pr. 278
Pr. 282
Target
frequency
Pr. 13
Pr.13
setting
or 0.5Hz,
whichever is lower
Pr. 280
Pr. 281
Output frequency (Hz)
Pr. 279
Pr. 283
Summary of Contents for FR-E710W-0.1K
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