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Automatic Restart After Instantaneous Power Failure (pr. 57, Pr. 58) - Mitsubishi Electric FR-E520 Instruction Manual

Transistorized inverter.
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4.2.22 Automatic restart after instantaneous power failure
(Pr. 57, Pr. 58)
Pr. 57 "restart coasting time"
Pr. 58 "restart cushion time"
• You can restart the inverter without stopping the motor (with the motor coasting) when
power is restored after an instantaneous power failure.
Parameter
Number
57
58
<Setting>
Refer to the following table and set the parameters:
Parameter
Number
0
57
0.1 to 5 s
9999
58
0 to 60 s
Factory
Setting
9999
0 to 5 s, 9999
1.0 s
0 to 60 s
Setting
0.1K to 1.5K
0.5 s coasting time
2.2K to 7.5K
1.0 s coasting time
Waiting time for inverter-triggered restart after power is
restored from an instantaneous power failure. (Set this time
between 0.1s and 5s according to the inertia moment (J)
and torque of the load.)
No restart
Normally the inverter may be run with the factory settings.
These values are adjustable to the load (inertia moment,
torque).
Instantaneous power
failure (power failure) time
Power supply
(R, S, T)
STF(STR)
Motor speed
(r/min)
Inverter output
frequency
(Hz)
Inverter output
voltage
(V)
Coasting time
Pr. 57 setting
Setting Range
9999: No restart
Description
Restart
voltage
cushion time
Pr. 58 setting
108
PARAMETERS
Remarks
Generally use this setting.

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