Dürkopp Adler 755 B Operating Instructions Manual page 337

Troubleshooting
Error code Symbol
2202
2221
2222
2230
2252
2253
2255
2256
2301
2302
Operating Instructions 755 B, 756 B/F - 00.0 - 02/2021
Meaning
Stepper motor middle knife
overload
• Blocked/sluggish
• Defective
• Control defective
Stepper motor middle knife
• Encoder plug (Sub-D, 9-pin)
not connected or defective
• n-Encoder defective
Stepper motor middle knife pulse-
wheel search time out
Stepper motor middle knife drive
not responding: Stepper motor
card defective
Stepper motor middle knife
excess current
Stepper motor middle knife
excess voltage
• Mains voltage too high
Stepper motor middle knife
overload
• Blocked/sluggish
• Defective
• Control defective
• Stepper motor middle knife
overtemperature
• Stepper motor corner knife
support seized up/defective
• Control defective
Stepper motor corner knife
timeout reference
• Faulty cable to the reference
switch
• Reference switch defective
Stepper motor corner knife
overload
• Blocked/sluggish
• Defective
• Control defective
Remedial action
• Eliminate seizing/stiff movement
• Check encoder cable and replace,
if necessary
• Replace stepper motor
• Check plug of the encoder cable
and if necessary replace it.
• Check connection cables motor /
encoder \n-Check stepper motor
for stiff movement
• Perform software update
 p. 285
• Replace stepper motor card
• Replace control
• Replace stepper motor middle
knife
• Replace control
• Check mains voltage
• Eliminate seizing/stiff movement
• Replace stepper motor
• Replace control
• Eliminate seizing
• Replace stepper motor corner
knife
• Replace control
• Replace cable
• Replace reference switch
• Eliminate seizing/stiff movement
• Check encoder cable and replace,
if necessary
• Replace stepper motor
335