Mitsubishi Electric FR-A820-00046 Instruction Manual page 743

Parameters
NOTES To operate the inverter with the automatic restart after instantaneous power failure function ena-
bled, check the following points.
Set Pr. 57 "Restart coasting time" = "0".
Turn the terminal CS (Selection of automatic restart after instantaneous power failure, flying start)
ON.
Automatic restart after instantaneous power failure function
● The inverter output is shut off at the activation of the instantaneous power failure protection
(E.IPF) or undervoltage protection (E.UVT). (Refer to page 6-9 for E.IPF or E.UVT.)
● When E.IPF or E.UVT is activated, the instantaneous power failure (IPF)/undervoltage signal is
output.
● The IPF signal is assigned to terminal IPF in the initial setting. To assign the IPF signal to a different
terminal, set "2 (positive logic) or 102 (negative logic)" to any of Pr. 190 to Pr. 196 (Output terminal
function selection).
● When the automatic restart after instantaneous power failure function is selected, motor restarts
at the power restoration after an instantaneous power failure or undervoltage. (E.IPF and E.UVT
are not activated.)
Power
supply
Connection (CS signal)
● Restart is enabled at turn-ON of the automatic restart after instantaneous power failure/flying
start (CS) signal.
● The inverter operation is disabled at turn-OFF of the CS signal while Pr. 57 "Restart coasting time"
≠ "9999" (with restart).
Fig. 5-281:
FR-A800
15 ms to 100 ms*
ON
OFF
OFF
* 10 to 100 ms for IP55 compatible models
MCCB
With electronic bypass sequence
Only with restart after instantaneous power failure
Connection example
Fig. 5-280:
IPF signal
ON
MC2
MC1
MC3
R/L1 U
S/L2 V
T/L3 W
R1/L11
S1/L21
STF
MC
CS
switchover
SD
sequence
For use for only automatic
CS
restart after instantaneous
SD
power failure or flying start,
turn ON the CS signal in
advance.
(A) Application parameters
IM
I001353E
I002849E
5 - 563