LNS SERVO S3 T, Instruction Manual

Page: 109 / 120

CHAPTER 8: MALFUNCTIONS/MAINTENANCE 107
QUICK LOAD SERVO S3T
AL20 - LIGHT PROBE SQ3 ACTIVATED TOO SOON!
Description
The alarm "LIGHT PROBE SQ3 ACTIVATED TOO SOON!" is generated when the PLC detects the input
(I10 – SQ3) before the safety distance has been reached during measurement of the bar.
Solutions:
Press the STOP button on the remote control to clear the message.
Press the MENU button.
Press the SERVICE button.
Press the POSITION button.
Find the value corresponding to the text " MAX BAR LENGTH ".
This value may not exceed that of the bar length. If necessary, correct this value.
Measure the bar to be loaded. This bar must not exceed the value entered above.
AL21 – BAR MAGAZINE EMPTY!
Description
No bar has been detected in the bar feeder.
Solutions
Check presence of bars on the ramp.
Load bar stock to continue the production.
AL22 - LOADING CYCLE INTERRUPTED!
Description
Signal A2 (automatic cycle) has been lost.
Solutions
Check the lathe <-> bar feeder connection.
Verify the wiring of the signal A2.
Check the lathe programming.
AL23 - LOADING TIME ELAPSED!
Description
The time allotted to reach the position has elapsed.
Solutions
Remove the bar out of the spindle.
Start the top-cut cycle again.
Check the part settings.
AL24 - LATHE DID NOT RESUME ITS PRODUCTION CYCLE !
Description
The alarm "LATHE DID NOT RESUME ITS PRODUCTION CYCLE!" is generated if the bar feeder does
not receive the signal from the lathe collet (I24 – A1) within a minute of it reaching the top-cut position.
Solutions
Alarm needs to be cleared. Press the STOP key on the remote control station to clear the message and
reset the alarm.
Restart the bar feeder and the lathe automatic cycle.