Mitsubishi Electric FR-F820-04750 Instruction Manual page 275

Parameters
NOTES When Pr. 13 = "0 Hz", the starting frequency is held at 0.01 Hz.
When the start signal was turned OFF during start-time hold, deceleration is started at that point.
At switching between forward rotation and reverse rotation, the starting frequency is valid but the
start-time hold function is invalid.
CAUTION:
E
Note that when Pr. 13 is set to any value equal to or lower than the setting of Pr. 2 "Minimum
frequency", simply turning ON the start signal will run the motor at the frequency set in Pr. 2
even if the command frequency is not input.
Parameters referred to
Pr. 2
FR-F800
(F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
Minimum frequency => page 5-171
5 - 113