DURKOPP ADLER 969 Service Instructions Manual page 112

Code
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3150
3151
3155
3160
3215
3216
3217
3218
110
Possible cause
AC-RDY timeout, intermediate
circuit voltage did not reach
the defined threshold in the
specified time
High voltage fault, mains
voltage, longer duration
>290 V
Low voltage failure
nd
(2 threshold) (mains voltage
< 150 V AC)
Low voltage warning
st
(1 threshold) (mains voltage
< 180 V AC)
Pedal is not in position 0
U24 V short circuit
2
U24 V (I T) overload
Pedal not connected
Speed limited due to
insufficient mains voltage
Operation lock
Maintenance necessary
Maintenance necessary
(operation cannot continue
unless parameter t 51 14 is
reset)
No release for sewing process • Parameter t 51 20 - t 51 33
Stitch loosening device
Bobbin stitch counter (info
value 0 reached)
Remaining thread monitor left • Change the left bobbin
Remaining thread monitor
right
Remaining thread monitor left
and right
Troubleshooting
Remedial action
• Check mains voltage
• If the mains voltage is OK,
replace the control
• Check mains voltage
• If nominal voltage is
continuously exceeded, stabilize
it or use a generator
• Check mains voltage
• Stabilize the mains voltage
• Use generator
• Check mains voltage
• Stabilize the mains voltage
• Use generator
• When switching the control on,
take your foot off the pedal
• Disconnect 37-pin plug; if error
persists, replace control
• Test inputs/outputs for 24 V
short circuit
• One or several magnets
defective
• Connect analog pedal
• Check mains voltage
• Check tilt sensor on machine
• Lubricating the needle bar
• Service is required  p. 99.
= 25
• Stitch loosening cannot be
performed
• Change bobbin, set counter
value
• Change the right bobbin
• Change the left and right bobbin
Service Instructions 969 - 06.0 - 03/2019