Loepfe YarnMaster PRISMA - Page 40

Troubleshooting
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YarnMaster PRISMA
Clean sensing head
Display LZE Messages Cause Measures
AL 20
D ECR (zeroing)
failed several times
5 failed D sensor ECR cycles
(o1 cut) reached
- Clean measurement channel
- Replace TK
AL 21
M ECR (zeroing)
failed several times
5failed M sensor ECR cycles
(o1 cut) reached
- Clean measurement channel
- Replace TK
AL 22
F ECR (zeroing)
failed several times
5failed F sensor ECR cycles
(o1 cut) reached
- Clean measurement channel
- Replace TK
AL 23
Yarn is in the D
measuring channel
3 consecutive D-sensor ECR
values deviate > 5 % from the
previous average
(monitoring active after 5 suc-
cessful ECRs)
- Clean measurement channel
AL 24
Yarn is in the M
measuring channel
3 consecutive M-sensor ECR
values deviate > 5 % from the
previous average
(monitoring active after 5 suc-
cessful ECRs)
- Clean measurement channel
AL 25
Yarn is in the F
measuring channel
3 consecutive F-sensor ECR
values deviate > 5 % from the
previous average
(monitoring active after 5 suc-
cessful ECRs)
- Clean measurement channel
Repeat adjustment
Display LZE Messages Cause Measures
AL 30
Adjustment failed Faulty bobbin (quality) or a
soiled measuring field
D-sensor
- Repeat adjustment, with new
bobbin
- Clean the respective TC mea-
suring field D-sensor and repeat
the adjustment for the spindle
- Clean the D-sensor measuring
field of all TCs in the group and
repeat the adjustment for the
group
AL 31
Adjustment outside
the limit
Threshold value exceeded - Repeat adjustment, with new
bobbin