Mitsubishi Electric FR-A740-00023 Instruction Manual page 245

(3) Forward rotation and reverse rotation signal (Y30, Y31 signal)
Forward
Actual
rotation
motor
speed
ON
Y30
Y31
REMARKS
⋅ 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.
(4) Regenerative mode output signal (Y32 signal)
Driving
+
Regeneration
-
ON
Y32
REMARKS
⋅ This signal is always off during V/F control, advanced magnetic flux vector control or real sensorless vector control.
⋅ The FR-A7AP (option) is necessary for vector control.
Pre-excitation
Time
Reverse
rotation
ON
Time
Less than 100ms
OFF ON
Signal is retained for 100ms.
Function assignment of external terminal and control
⋅ 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 (positive logic) or
130 (negative 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 (positive logic) or
131 (negative logic)" to any of Pr. 190 to Pr. 196 (output
terminal function selection) to assign the function to the
output terminal.
⋅ While the motor is in regenerative status (motor is in
power regenerative status), the regenerative status
output signal (Y32) is turned on.
If the signal is turned on once, it will be retained for at
least 100ms.
⋅ It turns off while the inverter is stopped and during pre-
excitation.
⋅ When using the Y32 signal, set "32 (positive logic) or
132 (negative logic)" to any of Pr. 190 to Pr. 196 (output
terminal function selection) to assign the function to the
output terminal.
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