Yaskawa i80M Maintenance Manual - Manual (Page 101)

4.2.10 ALARM 3002 (EMERGENCY STOP)
Table 4.12
Cause of Trouble
Emergency stop button
depressed, or, machine
end LS is out of place.
Failure of FC230B or
Drop of +24 V power
voltage
Check Method
ensuring signal #3500 O
(during emergency stop), check
continuity of emergency stop button or
machine end LS shown below. For
connection, refer to connection
diagram prepared by machine
manufacturer.
FC230B
f
CN27-10,11
M A C H I N E
END LS
I
MACHINE END
RELEASE
This FC230 failure if alarm 3002 lights
even at #3500
= 1
Check +24 VDC power. If the voltage is
below +20 V, it indicates possible trouble.
Solution
Reset the emergency stop
button. Release it from
machine end LS according
to instruction manual
prepared by machine tool
manufacturer.
Replace FC230B or
Contact your YASKAWA
representative.
Replace or
(power supply
unit).
Contact your YASKAWA
representative.
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