Mitsubishi FREQROL-SFJ, Руководство по обслуживанию

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"READY" signal and "speed reference" signal have
been input.
Trouble II Checkup
Remedy
Control equip- (1) Check if fuse was
(1) Replace blown out
ment comes into
blown out or main
fuse. If fuse is
a standstill
circuit no-fuse
blown out again,
abruptly
er was tripped.
proceed to "Step
(2) Check the input power
(2) Input correct power
Provide power
AC200
ply with sufficient
margin in capacity.
(3) "Alarm"
is displayed. Refer to 7.4.
(4) Are signals from NC
and-programmable con-
troller proper?
Check the input sig-
nals (machine "READY",
"FWD run", "REV run",
etc.), using "diagno-
sis"
function (read-
out).
(5) In open-loop control
(5) If operation
mode,
comes possible,
0 set control
it is likely that
ter to 00 0001
speed feedback
A D D
DATA
system is in
0 input "speed
ure.....
replace
signal and
the encoder.
"start" command to
try operation.
If operation is
impossible, it is
(Control mode returns
likely that the
to closed-loop mode,
I
0
I
main circuit is in
when
button is
failure ("alarm"
pressed,
the power!
lamp will light).
is turned off after
parameter setting.)
a7