DURKOPP ADLER 756 A

Troubleshooting
456 Service Instructions 755 A/756 A - 00.0 - 02/2019
2330 Step motor corner knife support
not responding: Step motor card
defective
• Perform software update
 p. 431
• Replace step motor card
• Replace control
2353 Step motor tape feeder excess
voltage - mains voltage too high
Check mains voltage
2355 Stroke position step motor
overload
• blocked/sluggish
• defective
• Control defective
• Eliminate seizing/stiff movement
• Replace step motor
• Replace control
2356 Step motor tape feeder overtem-
perature
• seized up
• defective
• Control defective
• Eliminate seizing
• Replace step motor tape feeder
• Replace control
2401 Step motor error at corner knife,
seam begin
• Cable to reference switch
defective
• Reference switch defective
Check cable to reference switch and
replace, if necessary
2430 Step motor needle transport not
responding: Step motor card
defective
• Perform software update
 p. 431
• Replace step motor card
• Replace control
2501 Reference time out step motor
transport clamp adjustment left
• Eliminate blockage or seizing
• Replace step motor, check
reference switch
• Adjust transport clamp  p. 360
2505 Error step motor transport clamp
adjustment left
• Eliminate blockage or seizing
• Adjust transport clamp  p. 360
2506 Error step motor transport clamp
adjustment right at mechanical
stop
• Adjust stop
• Change correction values
2522 Step motor transport clamp left
pulse-wheel search time out
• Check connection cables motor /
encoder
• Check step motor for stiff
movement
2530 Step motor quick clamp adjust-
ment left not responding: Step
motor card defective
• Perform software update
 p. 431
• Replace step motor card
• Replace control
Error code Symbol Meaning Remedial action