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"READY" signal and "speed reference" signal have
been input.
Trouble II
Control equip-
ment comes into
a standstill
abruptly
Checkup
(1) Check if fuse was
blown out or main
circuit no-fuse break-
er was tripped.
(2) Check the input power
AC200 - 23OV_l5%,
(3) "Alarm" is displayed.
(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
mode,
0 set control paramet-
ter
to
00
A D D
0 input "speed refer-
"start" command to
try operation.
(Control mode returns
to closed-loop mode,
0
when *p'
button
pressed,
is turned off after
parameter
Remedy
(1) Replace blown out
fuse.
blown out again,
proceed to "Step
(2) Input correct power
Provide power sup-
ply with sufficient
margin in capacity.
Refer to 7.4.
(5) If operation be-
comes possible,
it is likely that
speed feedback
0001
DATA
system is in fail-
ure..... replace
the encoder.
If operation is
impossible, it is
likely that the
I
I
main circuit is in
is
failure ("alarm"
the power!
lamp will light).
setting.)
If fuse is
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Table of Contents
Troubleshooting
