115
Motor brake and stop operation
4.9.4 Output stop function (Pr. 522)
When both of the frequency setting signal and output frequency falls to the frequency set in Pr. 522 or lower, the
inverter stops the output and the motor coasts to a stop.
After a stop, the inverter output re-starts when the frequency signal is set higher than Pr.522 + 2Hz. The motor re-
accelerates at the Pr.13 Starting frequency.
* The output frequency before the slip compensation is compared with the Pr.522 setting.
*1 After a stop, inverter re-starts accelerating at Pr.13 Starting frequency.
*2 The output frequency before the slip compensation is compared with the Pr.522 setting.
*3 Steepness of the slope depends on the acceleration/deceleration time settings such as Pr.7.
The motor coasts to a stop (inverter output shutoff) when inverter output frequency falls to Pr. 522 setting or lower.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
522
Output stop frequency 9999
0 to 400Hz Set the frequency to start coasting to a stop (output shutoff).
9999 No function
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 185)
Output frequency*
Pr.522
Pr.13
STF
Time
Inverter output shutoff
RUN
Pr.522+2Hz
Target frequency
(fixed)
Example of when target frequency>Pr.522+2Hz, and start signal is ON/OFF
Pr.522
Pr.13
STF
*1
Output frequency
*2
*1
Time
RUN
Pr.522+2Hz
nalog input command
Pr.522
Time
Pr.522+2Hz
Inverter output
shutoff
Inverter output
shutoff
target frequency = analog input command,
start signal always ON
Example of:
*3
*3
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