Operation Manual

Operating Instructions 650-10 - 02.0 - 10/2015138
2402 Error U-axis stepper motor:
• Stepper motor not moving
freely or blocked
• Encoder cable not
connected
or defective
• Stepper motor cable not
connected or defective
• Encoder defective
• Stepper motor defective
• Remove the cause of the
stiff movement or 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
2403 Error U-axis stepper motor step
losses:
• Stiff mechanical movement
or blockage
• Remove the cause of the
stiff mechanical movement
or blockage
2421 Error U-axis stepper motor:
• Encoder plug (Sub-D,
9-pin) not connected or
defective
• Encoder defective
• Check the connection of
the encoder cable and
replace, if necessary
2422 Information Magnet wheel search
timeout
• Check connection cables
• Check stepper motor for
stiff movement
2430 Error U-axis stepper motor not
responding
• Perform a software update
• Replace the control
2452 Error U-axis stepper motor over
current
• Replace the stepper motor
2453 Error Excess voltage • Check the mains voltage
2455 Error U-axis stepper motor
overload
(I²T):
• Stepper motor not moving
freely or blocked
• Stepper motor defective
• Controller defective
• Remove the blockage or
the cause of the stiff
movement
• Replace the stepper motor
• Replace the control
2456 Error U-axis stepper motor:
• Stepper motor not moving
freely
• Stepper motor defective
• Controller defective
• Correct the cause of not
moving freely
• Replace the stepper motor
• Replace the control
Code Type Possible causes Remedial action