Mitsubishi Electric Q172CPU Programming Manual page 269

APPENDICES
Error
code
Name
• 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
2032 Overcurrent
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 exceeded
400[V] or more. (800VAC or more for
400VAC series servo amplifier.)
• The frequency of
acceleration/deceleration was too
high for the regenerative ability.
• The regenerative resistor has been
connected incorrectly.
• The regenerative resistor in the servo
2033 Overvoltage amplifier is destroyed.
• The power transistor for regeneration
is damaged.
• The power supply voltage is too high.
• Data received from the Multiple CPU
system is fault.
Communica-
2034
tions error
Table 2.3 Servo error (2000 to 2799) list (Continued)
Error cause
Description
Error check
processing
Any time during Immediate
operation
APP - 24
Error
Corrective action
• 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 servomotor.
• Correct the wiring.
• Replace the servo amplifier.
• Replace the servomotor.
• Replace the encoder cable.
• Check the connected motor in
the system settings.
• Check and adjust the gain
setting value in the servo
parameters.
• Check if any relays or solenoids
are operating in the vicinity.
stop
• Increase the
acceleration/deceleration time in
the fixed parameters.
• Check the connection between
C and P of 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 turned off.)
• Replace the servo amplifier.
• Measure the input voltage (R, S,
T) with a voltmeter.
• Check the connection of
SSCNET cable.
• Check if there is a disconnection
in the SSCNET cable.
• Check if the SSCNET cable is
clamped correctly.