Mitsubishi Electric FR-A700 Instruction Manual page 444

Motor brake and stop operation
With 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 speed has decreased to the frequency set in Pr. 282 during deceleration, the
brake opening request signal (BOF) is turned off. When the time set in Pr. 283 has elapsed
after the BOF signal is turned off, the inverter output is switched off.
Electromagnetic brake
Fig. 6-112: Operation when parameter 292 = 8
NOTE Even if automatic acceleration/deceleration has been selected, inputting the jog signal (jog
operation), RT signal (second function selection) or X9 signal (third function selection) dur-
ing an inverter stop will switch to the normal operation and give priority to jog operation or
second and third function selection. Note that JOG and RT signal input is invalid even if JOG
signal and RT signal are input during automatic acceleration/deceleration operation.
6 - 264
Output
frequency
Pr. 280
Pr. 282
Pr. 278
Pr. 13
STF
Output current
BOF signal
Closed
operation
Pr. 281
EIN
Pr. 279
EIN
Opened
Parameter
Time
Pr. 283
Closed
I001572E