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Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual Page 137

Fr-e700 series.
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(3)
Without brake opening completion signal input (Pr.292 = "8")
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 BOF signal is output, 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 the turn OFF of BOF 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.
Target
frequency
Pr. 282
Pr. 278
Pr. 13
STF
Output current
Brake opening request
(BOF signal)
Electromagnetic brake operation
REMARKS
If brake sequence function has been selected, inputting the JOG signal (Jog operation) or RT signal (second function selection)
during an inverter stop will make brake sequence function invalid and give priority to Jog operation or second function selection.
Note that JOG and RT signal input is invalid even if JOG signal and RT signal are input during operation with brake sequence
function.
Pr. 280
Pr. 281
ON
Pr. 279
ON
Closed
Motor brake and stop operation
Pr. 283
Opened
Pr.13 setting
or 0.5Hz,
whichever is lower
Time
Closed
137
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