Filter
Top Products
APP - 25
A
PPENDICES
Table 1.12 Servo error (2000 to 2899) list (Continued)
Error cause Error
code
Name Description
Error check
Error
processing
Corrective action
• Wrong setting of system setting
(regenerative brake)
• Check the regenerative brake of
system setting and set correctly.
• Built-in regenerative brake resistor or
regenerative brake option is not
connected.
• Connect correctly.
• High-duty operation or continuous
regenerative operation caused the
permissible regenerative power of the
regenerative brake option to be
exceeded.
[Checking method]
Call the servo monitor and check the
regenerative level.
• Reduce the frequency of
positioning.
(Call the regenerative level [%] of
servo monitor and reduce the
frequency of
acceleration/deceleration or feed
speed.)
• Use the regenerative brake
option of larger capacity.
• Reduce the load.
• Power supply voltage is abnormal.
MR-J3-B: 260VAC or more
MR-J3-B1: More than 135VAC
MR-J3-B4: 535VAC or more
• Review the power supply
• Built-in regenerative brake resistor or
regenerative brake option faulty.
• Replace the servo amplifier or
regenerative brake option..
2030
Regenerative
alarm
• Regenerative transistor faulty.
[Checking method]
• The regenerative brake option has
overheated abnormally.
• Servo error [2030] occurs even after
removal of the built-in regenerative
brake resistor or regenerative brake
option.
• Replace the servo amplifier.
• Command speed is too high. (Motor
speed has exceeded the instantaneous
permissible speed.)
• Check the servo program or
mechanical system program,
and set correctly.
• Small acceleration/deceleration time
constant caused overshoot to be large.
• If an overshoot occurs during
acceleration/deceleration, check
the acceleration/deceleration
time in the fixed parameters.
• Servo system is instable to cause
overshoot.
• Re-set servo gain to proper
value.
• If servo gain cannot be set to
proper value:
1) Reduce load inertia moment
ratio; or
2) Reexamine acceleration/
deceleration time constant.
• Electronic gear ratio is high. • Set correctly.(Check if the
number of pulses per revolution
and travel value per revolution
in the fixed parameters match
the machine system.
2031 Overspeed
• Encoder faulty.
Any time during
operation
Immediate
stop
• Replace the servomotor.