Mitsubishi Electric fr-e700 series, Instruction Manual

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Parameter Operation selection at power failure
FR-E700 SC EC/ENE 6 - 167
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.
When this function is used in combination with the automatic restart after instantaneous power fail-
ure function (Pr. 57
"9999"), deceleration can be made at a power failure and acceleration can be
made again after power restoration.
I001176E
Fig. 6-85: Operation continuation at instantaneous power failure
I001177E
Fig. 6-86: Operation continuation at instantaneous power failure
NOTE When operation continuation at instantaneous power failure function is used, keep the starting
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.
Output
frequency
Power
supply
Pr. 261 = 2 When power is restored during deceleration
Reacceleration
햲
Time
During deceleration
at occurrence of
power failure
햲
Deceleration time depends on Pr. 7 (Pr. 44).
Output
frequency
Power
supply
Pr. 261 = 2, Pr. 57 9999
When used with automatic restart after instantaneous
power failure
Automatic restart after
instantaneous power failure
Time
During deceleration
at occurrence of
power failure
Reset time + Pr. 57
During power failure