Mitsubishi Electric FR-A700 Instruction Manual page 486

Function assignment of external terminals
Forward rotation and reverse rotation signal (Y30, Y31)
The status during forward rotation (Y30) and reverse rotation (Y31) are output from the actual
motor speed under vector control.
Y30 and Y31 signals turn off during pre-excitation (zero speed, servo lock) under speed control
or torque control operation. Note that signals are output according to the motor rotation during
servo lock under position control as same as inverter running.
When using the Y30 signal, set "30 (source logic) or 130 (sink logic)" to any of Pr. 190 to Pr. 196
(output terminal function selection) to assign the function to the output terminal.
When using the Y31 signal, set "31 (source logic) or 131 (sink logic)" to any of Pr. 190 to Pr. 196
(output terminal function selection) to assign the function to the output terminal.
Fig. 6-133: Forward and reverse rotation of the motor
NOTES
This signal is always off during V/f control, advanced magnetic flux vector control or real
sensorless vector control.
If the motor is made to run by external force, etc. during an inverter stop, Y30 and Y31
remain OFF.
The FR-A7AP (option) is necessary for vector control.
6 - 306
Actual motor speed
Y30
Y31
Pre-excitation
Forward
rotation
Reverse
rotation
EIN
EIN
Parameter
Time
I001592E