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APP - 28
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PPENDICES
Table 1.12 Servo error (2000 to 2899) list (Continued)
Error cause Error
code
Name Description
Error check
Error
processing
Corrective action
• Servo amplifier failure • Replace the servo amplifier.
• The power supply was turned on and off
continuously by overloaded status.
• The drive method is reviewed.
• Ambient temperature of servo amplifier
is over 55[°C] (131[°F]).
• Review environment so that
ambient temperature is 0 to
55[°C] (32 to 131[°F]).
2045
Main circuit
device overheat
• Used beyond the specifications of close
mounting of servo amplifier.
• Use within the range of
specifications.
• Ambient temperature of servomotor is
over 40[°C] (104[°F]).
• Review environment so that
ambient temperature is 0 to
40[°C] (32 to 104[°F]).
• Servomotor is overloaded. • Reduce load.
• Review operation pattern.
• Use servomotor that provides
larger output.
2046
Servomotor
overheat
• Thermal sensor in encoder is faulty. • Replace the servomotor.
• Cooling fan life expiration • Replace the cooling fan of the
servo amplifier.
• Foreign matter caught in the fan stopped
rotation.
• Remove the foreign matter.
2047
Cooling fan
alarm
• The power supply of the cooling fan
failed.
• Replace the servo amplifier.
• Servo amplifier is used in excess
of its continuous output current.
• Reduce load.
• Review operation pattern.
• Use servomotor that provides
larger output.
• Servo system is instable and hunting. • Repeat acceleration/
deceleration to execute auto
tuning.
• Change auto tuning response
setting.
• Set auto tuning to OFF and make
gain adjustment manually.
• Machine struck something. • Review operation pattern.
• Install limit switches.
• Wrong connection of servo motor.
(Servo amplifier's output terminals U, V,
W do not match servo motor's input
terminals U, V, W.)
• Connect correctly.
2050 Overload 1
• Encoder faulty.
[Checking method]
When the servomotor shaft is rotated
with the servo off, the cumulative
feedback pulses do not vary in
proportion to the rotary angle of the shaft
but the indication skips or returns
midway.
Any time during
operation
Immediate
stop
• Replace the servomotor.