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Troubleshooting
Code
1203
2020
2021
2101
2103
2120
2121
2122
2155
2201
2203
2220
2221
2222
2255
Service Instructions 969 - 06.0 - 03/2019
Possible cause
Position not reached
DACextension box not
responding
Sewing motor encoder plug
(Sub-D, 9-pin) not connected
to DACextension box
DA stepper card 1 reference
run timeout
DA stepper card 1 step losses • Check for stiff movement
DA stepper card 1 not
responding
DA stepper card 1 encoder
plug (Sub-D, 9-pin) not
connected
DA stepper card 1 flywheel
position not found
DA stepper card 1 overload
DA stepper card 2 reference
run timeout
DA stepper card 2 step losses • Check for stiff movement
DA stepper card 2 not
responding
DA stepper card 2 encoder
plug (Sub-D, 9-pin) not
connected
DA stepper card 2 flywheel
position not found
DA stepper card 2 overload
Remedial action
• 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)
• Check connection cables
• Check LEDs of DACextension
box
• Performing a software update
• Connect encoder cable to
DACextension box using the
correct connection
• Check reference sensor
• Check connection cables
• Check LEDs of DACextension
box
• Performing a software update
• Connect encoder cable to the
control, use correct connection
• Check connection cables
• Check stepper motor 1 for stiff
movement
• Check for stiff movement
• Check reference sensor
• Check connection cables
• Check LEDs of DACextension
box
• Performing a software update
• Connect encoder cable to the
control, use correct connection
• Check connection cables
• Check stepper motor 2 for stiff
movement
• Check for stiff movement
109
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