13 Diagnostics
13.2 Check Error Code
274
FX3U-20SSC-H Positioning Block User's Manual
Servo amplifier
Error code, error content and action are given for the MR-J3- B(S).
Parentheses ( ) in the error code column indicate the LED display of the MR-J3- B(S).
→For the MR-J3W- B, refer to the MR-J3W- B Instruction Manual
→For details on how to check errors and actions, refer to the manual of the servo amplifier to be connected
2031
(31)
Overspeed
• The rotation speed has exceeded the
instantaneous permissible speed.
• When the acceleration/deceleration overshoots,
check the acceleration/deceleration time constant
in the fixed parameters.
• If the servo gain cannot be set to a proper value:
- Reduce the load inertia moment ratio (servo
parameter) of the servo motor.
→Refer to Subsection 11.2.2
- Review the acceleration/deceleration time
constant.
• Change the servo motor.
2032
(32)
Overcurrent
• The current flow is higher than the permissible
current of the servo amplifier.
• Correct the wiring.
• Change the servo amplifier.
• Adopt noise suppression measures.
2033
(33)
Overvoltage
• The following shows the input value of converter
bus voltage.
- MR-J3- B: 400VDC or more
- MR-J3- B1: 400VDC or more
- MR-J3- B4: 800VDC or more
• Use the regenerative brake option.
• Correct the setting of the regenerative brake
option (servo parameter).
→Refer to Subsection 11.2.1
• Change the regenerative brake option leads.
• Correctly connect the regenerative brake option
leads.
• Replace the servo amplifier.
• For a wire break of the built-in regenerative brake
resistor, change the servo amplifier.
• For a wire break of the regenerative brake option,
change the regenerative brake option.
• Add the regenerative brake option or increase the
capacity.
• Review the power supply
• Correct the wiring.
2034
(34)
Receive error 1
• SSCNET III communication error
(continuous communication error for about
3.5ms)
• Connect after turning the control circuit power
supply of the servo amplifier OFF.
• Wipe off any dirt from the end surface.
• Change the cable.
• Adopt noise suppression measures.
2035
(35)
Command frequency error
• The input pulse frequency of the command pulse
is too high.
• Review the operation program.
• Change the servo system controller.
• Adopt noise suppression measures on the I/O
signals.
• Adopt noise suppression measures on the
controller side.
2036
(36)
Receive error 2
• SSCNET III communication error
(intermittent communication error for about
70ms)
• Connect after turning the control circuit power
supply of the servo amplifier OFF.
• Wipe off any dirt from the end surface.
• Change the cable.
• Adopt noise suppression measures.
2037
(37)
Parameter error
• Parameter setting is wrong.
• Set the parameter value within the setting range.
• Change the servo amplifier.
2045
(45)
Main circuit device overheat
• Main circuit device overheat
• Replace the servo amplifier.
• Review the drive method.
• Review the environment so that the ambient
temperature is within the range 0 to 55°C.
• Use within the specification range.
2046
(46)
Servo motor overheat
• A servo motor temperature rise actuated the
thermal sensor.
• Review the environment so that the ambient
temperature is within the range 0 to 40°C.
• Reduce the load.
• Review the operation pattern.
• Use a servo motor that provides larger output.
• Replace the servo motor.
Error category
Error
Code
(decimal)
Error Content Action
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