DURKOPP ADLER 581 Operating Instructions Manual page 168

Error Meaning
1431 Sewing motor:
Stop position
1450 Internal sewing motor
fault
1498 Internal sewing motor
– fault
1499
21 .. .. Stepper motor X-axis
22 .. .. Y-axis stepper motor
23 .. .. Z-axis stepper motor
.. .. 02 Stepper motor current
feed fault
.. .. 03 Stepper motor step
losses
.. .. 21
166
Possible cause
• Internal sewing motor fault
• Internal sewing motor fault
• Internal sewing motor fault
• Stepper motor not moving
freely or blocked
• Encoder cable not
connected or defective
• Stepper motor cable is not
connected or is faulty
• Encoder defective
• Stepper motor defective
• Stiff mechanical movement
or blockage
• Encoder plug (Sub-D, 9-pin)
not connected or defective
• Encoder defective
Operating Instructions 581 - 01.0 - 05/2016
Troubleshooting
Remedial action
• Reduce the positioning
speed
• Perform software update
• Switch the machine off and
on again
• Perform software update
• Replace the control
• Contact Customer Service
• Switch the machine off and
on again
• Perform software update
• Replace the control
• Contact Customer Service
• Eliminate sluggishness/
blockage
• Check the encoder cable
and replace, if necessary
• Replace the encoder
• If the stepper motor is not
supplied with current:
• Check the stepper motor
cable and replace, if
necessary
• Replace the stepper motor
• Eliminate mechanical
sluggishness or blockage
• Check the connection of the
encoder cable and replace, if
necessary