APP - 33
APPENDICES
Table 2.13 Servo error (2000 to 2799) list (Continued)
Error cause Error
code
Name Description
Error check
Error
processing
Corrective action
• The frequency of ON/OFF switching of
the power transistor for regeneration
is too high. (Caution is required since
the regenerative resistor could
overheat.)
• Reduce the frequency of
acceleration and deceleration or
feed speed while checking the
servomotor regeneration level
[%].
• Reduce the load.
• Increase the servomotor
capacity.
• Servo parameter (system settings)
setting error.
• Check the servo parameters
(regenerative resistor and motor
type settings in the system
settings).
• Incorrect wiring of regenerative
resistor.
• Connect the regenerative
resistor correctly.
• Regenerative resistor fault. • Replace the regenerative
resistor.
2030
Excessive
regeneration
• Power transistor for regeneration
damaged by short circuit.
• Replace the servo amplifier.
• The motor speed exceeded 115[%] or
more of the rated speed.
• Check the motor speed in the
servo parameters.
• Check if the number of pulses
per revolution and travel value
per revolution in the fixed
parameters match the machine
system.
• An overshoot occurred because the
acceleration/deceleration time
constant is too small.
• If an overshoot occurs during
acceleration/deceleration, check
the acceleration/deceleration
time in the fixed parameters.
• An overshoot occurred because the
servo system is unstable.
• Adjust the position loop
gain/position control gain 1, 2 or
speed loop gain/speed control
gain 1, 2 of the servo
parameters, or increase the
speed differential compensation
of the servo parameters.
2031 Overspeed
• Encoder fault.
Any time during
operation
Immediate
stop
• Check the encoder cable for wire
breakage.
• Replace the servomotor.
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