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4 APPLICABLE FUNCTIONS
4.5 Machine diagnosis
Cancellation of backlash estimation function
Click the stop button during backlash estimation to cancel the backlash estimation. When backlash estimation is canceled,
"C000" is displayed in the error code status. When resuming backlash estimation, stop the servo motor once. In addition,
return the movable part to the estimated starting position.
When backlash estimation error occurs
If an estimation error occurs during the backlash estimation, the estimation will be canceled. At this time, as the error code is
displayed in the error code status, check the cause of the estimation error. To perform backlash estimation again, stop the
servo motor once. In addition, return the movable part to the estimated starting position.
Display Name
Error description
Handling example
0000
Successfully completed
C000
Tuning canceled
"Stop button" was clicked during the backlash
estimation.
C001
Servo-off during
estimation
Switched to servo-off during the backlash estimation.
Prevent the servo amplifier from switching to servo-off during
backlash estimation.
C002
Backlash misestimation
The backlash estimation amount could not be
calculated.
Drive the servo motor under the following conditions:
• The overspeed alarm level is 100 [r/min] or higher.
• The acceleration/deceleration torque is 30 % or more of the
rated torque.
The to-and-fro positioning operation cannot be
performed because of the effect of oscillation.
After adjusting the gain so that oscillation does not occur,
perform the backlash estimation.
The backlash estimation is performed without the
gear.
Execute the backlash estimation while the gear is connected to
the servo motor.
C003
Backlash estimation
start error during servo
motor driving
Starting backlash estimation is attempted when the
servo motor speed is 20 r/min or faster.
Perform backlash estimation while the servo motor is stopped.
C004
Backlash estimation
start error
The backlash estimation start button was pushed
during the backlash estimation.
Press the backlash estimation start button when the backlash
estimation is not performed.
The backlash estimation start button was pushed
during the amplifier command method one-touch
tuning.
Push the backlash estimation start button when the amplifier
command method one-touch tuning is not performed.
C005
Backlash estimation
control mode error
Backlash estimation started in the linear servo motor
control mode.
Backlash estimation cannot be used in the linear servo motor
control mode.
C006
Backlash estimation
command generation
error
The torque limit value has been set to 0.
Set the torque limit value to exceed the rated torque by 30 %.
C007
Stop signal error
LSP and LSN were turned off during the backlash
estimation.
EM2 was turned off during the backlash estimation.
When using FLS (upper stroke limit) and RLS (lower
stroke limit), FLS and RLS were turned off during
backlash estimation.
Review the starting position of the backlash estimation.
After ensuring safety, turn EM2 on.
C008
Servo parameter
Only one gear ratio is set to "0".
Set a value other than "0" for both the gear ratio numerator and
denominator.
Servo parameter for manufacturer setting has been
changed.
Restore the servo parameters for manufacturer setting to the
initial values.
The overspeed alarm level is too low.
Increase the overspeed alarm level.
Only one gear ratio is set to 0.
Set both the gear ratio numerator and denominator.
C009
Alarm
A backlash estimation was attempted to start during
occurrence of an alarm or warning.
An alarm/warning occurred during backlash
estimation.
Start the backlash estimation when no alarm/warning occurs.
Prevent alarm/warning from occurring during backlash
estimation.
C00A
Time-out
Two minutes or more passed during backlash
estimation.
Start backlash estimation after the torque limit value and the
overspeed alarm detection level have been increased.
Communication with MR Configurator2 was
disconnected during backlash estimation.
Prevent communication with MR Configurator2 from being
disconnected during backlash estimation.
FFFF
Backlash estimation not
implemented
The backlash estimation is not implemented.
Perform backlash estimation.