Dürkopp Adler 755 B Operating Instructions Manual page 338

Error code Symbol
2330
2353
2355
2356
2401
2430
2501
2505
2506
2521
2522
336
Meaning
Stepper motor corner knife not
responding: Stepper motor card
defective
Stepper motor tape feeder
excess voltage - mains voltage
too high
Stroke position stepper motor
overload
• Blocked/sluggish
• Defective
• Control defective
Stepper motor tape feeder over-
temperature
• sluggish
• defective
• Control defective
Reference time out stepper motor
needle transport
Stepper motor needle transport
not responding: Stepper motor
card defective
Reference time out stepper motor
transport clamp adjustment left
Error stepper motor transport
clamp adjustment left
Error stepper motor transport
clamp adjustment left at mechani-
cal stop
Stepper motor clamp adjustment
left:
• Encoder plug (Sub-D, 9-pin)
not connected or defective
• Encoder defective
Stepper motor transport clamp
left pulse-wheel search time out
Operating Instructions 755 B, 756 B/F - 00.0 - 02/2021
Troubleshooting
Remedial action
• Perform software update
 p. 285
• Replace stepper motor card
• Replace control
Check mains voltage
• Eliminate seizing/stiff movement
• Replace stepper motor
• Replace control
• Eliminate seizing
• Replace stepper motor tape
feeder
• Replace control
• Fix blockage/sluggishness
• Replace stepper motor
• Check reference switch
• Check cable
• Perform software update
 p. 285
• Replace stepper motor card
• Replace control
• Eliminate blockage or seizing
• Replace stepper motor, check ref-
erence switch
• Eliminate blockage or seizing
• Adjust stop
• Change correction values
• Check plug of the encoder cable
and if necessary replace it.
• Check connection cables motor /
encoder
• Check stepper motor for stiff
movement