131
Motor brake and stop operation
4
PARAMETERS
4.10.5 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.
⋅ At a stop condition, the motor starts running when the frequency setting signal exceeds Pr.522 +2Hz. The motor is
accelerated at the Pr.13 Starting frequency (0.01Hz under IPM motor control) at the start.
* The output frequency before the slip compensation is compared with the Pr.522 setting.
*1 At a stop condition, the motor is accelerated at the Pr.13 Starting frequency (0.01Hz under IPM motor control).
*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 201)
REMARKS
When the output stop function is valid (Pr.522 ≠ "9999"), the DC injunction brake becomes invalid and the motor coasts to stop when
the output frequency drops to the Pr.522 setting or lower.
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
