APPENDICES
APP − 27
Table 2.12 Servo Amplifier Error List (2000 to 2799) (Continued)
Error Cause
Error
Code
Amplifier
Type
Name Description
When Error Checked Error Processing Corrective Action
• The deviation counter value
exceeded the specified value.
• Inertia is too large to make enough
acceleration.
• Reconsider the servo parameters.
A
• Encoder or cable fault. • Change the encoder or cable.
2052
M
Excessive error
• The droop pulses of the deviation
counter exceeded the error
excessive alarm level set in the
servo parameters.
• Check if there has been a collision at
the machine.
• Increase the time constant for
acceleration and deceleration.
• Increase the position loop gain /
position control gain 1, 2, in the servo
parameters.
• Check the encoder cable for wire
breakage.
• Replace the servomotor.
• If the voltage of the bus in the servo
amplifier has dropped (charge lamp has
gone out), replace the servo amplifier.
2057
A
Hardware alarm
• ADU hardware fault.
Immediate stop
• Change the ADU.
2086
M
RS232
communication
error
• Parameter unit communication
error
• Check for disconnection of the
parameter unit cable.
• Replace the parameter unit.
A
• The absolute value encoder battery
voltage dropped.
• Change the battery (MR-JBAT- ).
2102
M
Battery warning
• The voltage of the battery installed
in the servo amplifier has become
low.
• Replace the battery.
2103
M
Battery
disconnection
warning
• The power supply voltage to the
absolute position sensor has
become low.
• Replace the battery.
• Check the encoder cable for wire
breakage.
• Replace the servomotor.
• Replace the servo amplifier.
2140
M
Excessive
regeneration
warning
• An excessive regeneration error
(2030) is likely to occur
(regeneration of 85% of the
maximum load capacity for the
regenerative resistor has been
detected).
• Refer to the details on the excessive
regeneration error (2030).
A
• The 80% level of the overload error
(2050) level was detected.
• Refer to details of the overload error
(2050).
2141
M
Overload warning
• An overload error (2050, 2051) is
likely to occur (85% of overload
level detected).
• Refer to the details on the overload
errors (2050, 2051).
2143
A
Absolute value
counter warning
• Encoder fault. • Change the encoder.
2146
M
Servo emergency
stop
• The connection between 1A and
1B (emergency stop input) of CN6
of the servo amplifier encoder has
been broken.
Operation
continues
• Establish a short circuit between 1A
and 1B of CN6 of the servo amplifier
encoder.
A
• Brought to an emergency stop.
2147
M
Emergency stop
• An emergency stop (EMG) signal
has been input from the servo
system CPU.
Immediate stop
• Release the emergency stop.
2149
M
Main circuit OFF
warning
• The servo ON (SON) signal was
turned ON while the contactor was
OFF.
• The main circuit bus voltage fell to
215 V or lower at 50 rpm or lower.
• Turn the main circuit contactor or circuit
power supply ON.
2196
M
Home position
setting error
warning
• After a home position set
command, the droop pulses did not
come within the in-position range.
At any time during operation
Operation
continues
• Re-attempt zeroing.
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