Mitsubishi Electric FR-F820-00046, Instruction Manual

Page: 588 / 940

(A) Application parameters Parameters
5 - 416
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 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.)
Connection (CS signal)
●
When the automatic restart after instantaneous power failure / flying start signal (CS) is assigned
to the input terminal by setting Pr.178 to Pr.189 (input terminal function selection), restart
operation is enabled at turn-ON of the CS signal.
●
When the CS signal is assigned to an input terminal and Pr. 57 "Restart coasting time"
≠
"9999"
(with restart), the inverter cannot be operated while the CS signal remains OFF.
●
Separated converter types detect the instantaneous power failure on the converter unit side.
Perform wiring so that the IPF signal transmitted from the converter unit is input to the terminal
to which the X11 signal is assigned.
On the converter unit side, enable the restart operation. (For setting the converter unit, refer to
the Instruction Manual of the converter unit.)
Fig. 5-204:
IPF signal
I001353E
I002849E_G
Fig. 5-205: Connection example
15 ms to 100 ms
Power
supply
ON
OFF
OFF
ON
STF
IM
MCCB
CS
PC
CS
PC
S1/L21
R1/L11
T/L3
S/L2
R/L1
MC1
MC2
W
V
U
MC3
MC
switchover
sequence
For use for only automatic
restart after instantaneous
power failure or flying start,
turn ON the CS signal in
advance.
With electronic bypass sequence
Only with restart after instantaneous power failure