Mitsubishi Electric A173UHCPU Programming Manual page 341

APPENDICES
Table 2.12 Servo Amplifier Error List (2000 to 2799) (Continued)
Error Amplifier
Code Type
Name
A
2032 Overcurrent
M
M
2033 Overvoltage
Communications
M
2034
error
Error Cause
Description
• The servo motor connected is not
as set.
• The U, V, and W phases of the
ADU output resulted in a short
circuit or ground fault.
• Wiring mistake of the U, V, and W
phases of the ADU output.
• Damage to the ADU's transistor
module.
• ADU fault.
• Coupling fault of servo motor and
encoder.
• The servo motor oscillated.
• U, V, W in the servo amplifier
outputs have short circuited with
each other.
• U, V, W in the servo amplifier
outputs have shorted to ground.
• Incorrect wiring of U, V, W phases
in the servo amplifier outputs.
• The servo amplifier transistor is
damaged.
• Failure of coupling between
servomotor and encoder
• Encoder cable failure
• A servomotor that does not match
the setting has been connected.
• The servomotor oscillated.
• Noise entered the overcurrent
detection circuit.
• The converter bus voltage has
reached 400 V or more. (800VAC
or more for 400VAC series servo)
• The frequency of acceleration and
deceleration was too high for the
regenerative ability.
• The regenerative resistor has been
connected incorrectly.
• The regenerative resistor in the
servo amplifier is destroyed.
• The power transistor for
regeneration is damaged.
• The power supply voltage is too
high.
• Error in data received from the
servo system CPU
When Error Checked Error Processing
• At power-on of servo
amplifier
• At servo error reset
Immediate stop
At any time during operation
APP − 24
Corrective Action
• Reconsider the system settings.
• Check the servo motor cable.
• Correct the servo motor wiring.
• Change the ADU.
• Change the servo motor.
• Reconsider the servo parameters.
• Check if there is a short circuit between
U, V, W of the servo amplifier outputs.
• Check if U, V, W of the servo amplifier
outputs have been grounded to the
ground terminal. Check if U, V, W of
the servomotor are grounded to the
core.
If grounding is found, replace the servo
amplifier and/or motor.
• Correct the wiring.
• Replace the servo amplifier.
• Replace the servomotor.
• Replace the encoder cable.
• Check the connected motor set in the
system settings.
• Check and adjust the gain value set in
the servo parameters.
• Check if any relays or valves are
operating in the vicinity.
• Increase the acceleration time and
deceleration time in the fixed
parameters.
• Check the connection between C and P
of the terminal block for the terminal
block for regenerative resistance.
• Measure between C and P of the
terminal block for regenerative
resistance with a multimeter; if
abnormal, replace the servo amplifier.
(Measure about 3 minutes after the
charge lamp has gone out.)
• Replace the servo amplifier.
• Measure the input voltage (R, S, T) with
a voltmeter.
• Check the connection of the motion bus
cable.
• Check if there is a disconnection in the
motion us cable.
• Check if the motion bus cable is
clamped correctly.