Output Stop Function (Pr.522) - Mitsubishi Electric FR-F740-00023 Instruction Manual

Motor brake and stop operation
4.9.4

Output stop function (Pr.522)

The motor coasts to a stop (inverter output shutoff) when inverter output frequency falls to Pr. 522 setting or lower.
Parameter
Name
Number
522 Output stop frequency
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 173)
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.
Example of when target frequency>Pr.522+2Hz, and start signal is ON/OFF
Target frequency
Pr.522+2Hz
* The output frequency before the slip compensation is compared with the Pr.522 setting.
Analog input command
Pr.522+2Hz
Output frequency
Pr.522+2Hz
*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.
108
Initial
Value
0 to 400Hz
9999
Output frequency
*
(fixed)
Pr.522
Pr.13
STF
RUN
Example of: target frequency = analog input command,
start signal always ON
Pr.522
*2
*3
Pr.522
*1
Pr.13
Inverter output
shutoff
STF
RUN
Setting
Range
Set the frequency to start coasting to a stop (output shutoff).
9999 No function
Inverter output shutoff
*3
*1
Inverter output
shutoff
Description
Time
Time
Time