LNS GT 326-E, Instruction Manual, Page: 125 / 218

9 - 10
9 TROUBLESHOOTING GUIDE
GT 326-E
AL14 Part Feed Out Too Long!
Description
The bar feeder continuously monitors the pusher
moving distance while the chuck of the lathe is open
(the bar feeder is currently feeding bar stock). If the
distance exceeds the
“Too long collet open” setup, this
alarm will turn on.
Only valid with fixed headstock lathe.
Troubleshooting
1. Check if the bar stock is disconnected from the
pusher collet.
2. Check if
“Too long collet open
”
setup is incorrect.
3. Check if the transmission mechanism or chain is
broken.
4. Check if the bar measuring device is defective.
5. Press
“STOP” button on HMI to clear the alarm.
AL15 Part Feed Out Too Short!
Description
The bar feeder monitors the pusher moving distance
from the time the chuck opens to the time the chuck
closes (the lathe is currently proceeding machining).
Once the chuck closes and if the distance is 5 mm
shorter than
“Part length” this alarm will turn on.
Only valid with fixed headstock lathe.
Troubleshooting
1. Check if the alignment of the bar feeder is correct.
2. Check if the channel and front tube sizes are correct
and if obstructed.
3. Check if the pusher is bent
4. Check if the lathe spindle is obstructed.
5. Check if the front rest is clamping on the bar.
6. Check if the lathe chuck is too tight due to the size
being incorrect or for any burrs inside the chuck or
on the bar.
7. Check if the timer for controlling the chuck
open/close is too short.
8. Check if the measuring device is defective or
malfunctioning.
9. Check if
“End of Bar” position is setup correctly.
10. Press
“STOP” button on HMI to clear the alarm.