LNS GT 326-E, Instruction Manual, Page: 121 / 218

9 - 6
9 TROUBLESHOOTING GUIDE
GT 326-E
AL02 Main Access Cover Open!
Description
This alarm only applies when the main access cover
safety switch SQ11 is installed.
When the guiding channel is open and the main access
cover is opened the CE safety switch SQ11 is
disengaged. This alarm will be displayed.
Troubleshooting
1. Close the main access cover.
2. If the cover is already closed:
(1) Check if there is something blocking the cover
or if the cover is bent to prevent the sensor
SQ11 to operate.
(2) Check if the switch SQ11 is defective.
(3) Press
“STOP” key on HMI to clear the alarm.
AL03 Bar Feeder Retracted Or Not In Working Position
Description
Following the operation procedures described on 7.12.2,
when the bar feeder is retracted and both of the retraction
safety switches
“SQ10” and “SQ10a” are engaged, the
alarm message will be generated.
＊
This alarm only applies to bar feeder with optional
Z-axis retraction.
Troubleshooting
1. Position the bar feeder in its working position.
2. Check if the safety switches are defective or
misadjusted.
3. Press the STOP button on the remote control to
reset the alarm.
AL04 Oil Pressure Failure!
Description
When oil pump is operating but switch SP2 doesn
’t
detect any oil pressure in 60 seconds (SP2 OFF). This
alarm only shown after the lathe finishes machining a
workpiece and chuck is open.
This switch is optional so this error message is only
available when bar feeder installed this switch.
Troubleshooting
1. Check if oil bump can supply oil smoothly.
2. Replace oil pressure switch SP2 if
it’s broken.
3. Press
“STOP” button on remote control to remove.