Mitsubishi Electric FR-E700 Instruction Manual page 304

Operation selection at power failure
Operation continuation at instantaneous power failure function (Pr. 261 = 2)
When power is restored during deceleration after a power failure, acceleration is made again up
to the set frequency.
Fig. 6-84: Operation continuation at instantaneous power failure
When this function is used in combination with the automatic restart after instantaneous power
failure function (Pr. 57 ≠ 9999), deceleration can be made at a power failure and acceleration
can be made again after power restoration.
frequency
Fig. 6-85: Operation continuation at instantaneous power failure
NOTE When operation continuation at instantaneous power failure function is used, keep the start-
ing signal (STF/STR) on even during instantaneous power failure. If the starting signal turns
off during instantaneous power failure, the inverter decelerates according to the deceleration
time setting, causing the motor to coast if enough regenerative energy is not obtained.
6 - 164
Pr. 261 = 1
Power
supply
Output
frequency
Pr. 261 = 2, Pr. 57 ≠ 9999
Power
supply
Output
During deceleration
at occurrence of
power failure
When power is restored during
deceleration
During deceleration
at occurrence of
power failure
When used with automatic restart after
instantaneous power failure
During power failure
Reacceleration
Time
Deceleration time depends on Pr. 7
(Pr. 44).
Automatic restart after
instantaneous power failure
Time
Reset time + Pr. 57
Parameter
I001176E
I001177E