DURKOPP ADLER 969 Classic, Service Instructions Manual, Page: 111 / 122

Troubleshooting
Service Instructions 969 - 06.0 - 03/2019 109
1203 Position not reached • Check and, if necessary, change
controller settings
• Make mechanical changes to
the machine (e.g. thread cutting
setting, belt tension)
• Check the position (thread lever
at top dead center)
2020 DACextension box not
responding • Check connection cables
• Check LEDs of DACextension
box
• Performing a software update
2021 Sewing motor encoder plug
(Sub-D, 9-pin) not connected
to DACextension box • Connect encoder cable to
DACextension box using the
correct connection
2101 DA stepper card 1 reference
run timeout • Check reference sensor
2103 DA stepper card 1 step losses • Check for stiff movement
2120 DA stepper card 1 not
responding • Check connection cables
• Check LEDs of DACextension
box
• Performing a software update
2121 DA stepper card 1 encoder
plug (Sub-D, 9-pin) not
connected • Connect encoder cable to the
control, use correct connection
2122 DA stepper card 1 flywheel
position not found • Check connection cables
• Check stepper motor 1 for stiff
movement
2155 DA stepper card 1 overload • Check for stiff movement
2201 DA stepper card 2 reference
run timeout • Check reference sensor
2203 DA stepper card 2 step losses • Check for stiff movement
2220 DA stepper card 2 not
responding • Check connection cables
• Check LEDs of DACextension
box
• Performing a software update
2221 DA stepper card 2 encoder
plug (Sub-D, 9-pin) not
connected • Connect encoder cable to the
control, use correct connection
2222 DA stepper card 2 flywheel
position not found • Check connection cables
• Check stepper motor 2 for stiff
movement
2255 DA stepper card 2 overload • Check for stiff movement
Code Possible cause Remedial action