Motor brake and stop operation
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.
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.
Brake opening request
Brake opening completion
Electromagnetic brake operation
whichever is lower