Mitsubishi Electronics FR-A500 ユーザーズマニュアル
182
<Operation example>
z
At start:
When the start signal is input to the inverter, the inverter starts running. When the output
frequency 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.
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.
z
At stop:
When the speed has decreased to the frequency set in Pr. 282, the brake opening request
signal (BOF) is switched off. When the time set in Pr. 283 elapses after the brake operation
confirmation signal (BRI) was activated, the motor decelerates to a stop.
*If Pr. 60 = "8" (mechanical brake opening completion signal not input), this time is the time after
the brake opening request signal is output.
confirmation signal (BRI) was activated, the motor decelerates to a stop.
*If Pr. 60 = "8" (mechanical brake opening completion signal not input), this time is the time after
the brake opening request signal is output.
1) Pr. 60 = "7" (brake opening completion signal input)
2) Pr. 60 = "8" (mechanical brake opening completion signal not input)
STF
ON
ON
Pr.280
Pr.278
Pr.13
Pr.281
Pr.278
Pr.282
Pr.283
ON
Pr.279
Time
Target
frequency
frequency
Output frequency
Output current
Brake opening request
(BOF signal)
Brake opening completion
(BRI signal)
Electromagnetic brake operation
Closed
Opened
Closed
STF
ON
ON
Pr.280
Pr.278
Pr.13
Pr.281
Pr.278
Pr.282
Pr.283
Pr.279
Time
Target
frequency
Output frequency
Output current
Brake opening request
(BOF signal)
Electromagnetic brake operation
Closed
Opened
Closed