Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации

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Operation selection at power failure Parameter
6 - 136
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
failure function (Pr. 57
≠
9999), deceleration can be made at a power failure and acceleration
can be made again after power restoration.
I001176E
Fig. 6-74: Operation continuation at instantaneous power failure
I001177E
Fig. 6-75: 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.
Output
frequency
Power
supply
Pr. 261 = 2 When power is restored during deceleration.
Reacceleration
Time
During deceleration
at occurrence of
power failure
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