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PARAMETERS
81
"
" Monitoring reference (Pr. 55, Pr. 56)
"
" Automatic restart after instantaneous power failure (Pr. 57, Pr. 58)
4.2.18 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
Factory
Setting
Setting Range Remarks
57 9999 0 to 5 s, 9999 9999: No restart
58 1.0 s 0 to 60 s
<Setting>
Refer to the following table and set the parameters:
Parameter
Number
Setting Description
0.1K to 1.5K 0.5 s coasting time
0
2.2K to 7.5K 1.0 s coasting time
Generally use this setting.
0.1 to 5 s
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.)
57
9999 No restart
58 0 to 60 s
Normally the inverter may be run with the factory settings. These
values are adjustable to the load (inertia moment, torque).
Pr. 58 setting
Instantaneous power
failure (power failure) time
Power supply
(R(L1), S(L2), T(L3))
STF(STR)
Motor speed
(r/min)
Inverter output
frequency
(Hz)
Inverter output
voltage
(V)
Coasting time
Pr. 57 setting
Restart
voltage
rise time