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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 190)
....Specifications differ according to the date assembled. Refer to page 400 to check the SERIAL number.
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
A
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