APPENDICES

Table 1.12 Servo error (2000 to 2899) list (Continued)

Error

 

Error cause

Error check

Error

Corrective action

code

Name

Description

processing

 

 

 

 

• Wrong setting of system setting

 

 

• Check the regenerative brake of

 

 

(regenerative brake)

 

 

system setting and set correctly.

 

 

• Built-in regenerative brake resistor or

 

 

• Connect correctly.

 

 

regenerative brake option is not

 

 

 

 

 

connected.

 

 

 

 

 

• High-duty operation or continuous

 

 

• Reduce the frequency of

 

 

regenerative operation caused the

 

 

positioning.

 

 

permissible regenerative power of the

 

 

(Call the regenerative level [%] of

 

 

regenerative brake option to be

 

 

servo monitor and reduce the

 

 

exceeded.

 

 

frequency of

 

 

[Checking method]

 

 

acceleration/deceleration or feed

 

 

Call the servo monitor and check the

 

 

speed.)

 

 

regenerative level.

 

 

• Use the regenerative brake

 

Regenerative

 

 

 

option of larger capacity.

2030

 

 

 

• Reduce the load.

 

alarm

• Power supply voltage is abnormal.

 

 

• Review the power supply

 

 

 

 

 

 

MR-J3-†B: 260VAC or more

 

 

 

 

 

MR-J3-†B1: More than 135VAC

 

 

 

 

 

MR-J3-†B4: 535VAC or more

 

 

 

 

 

• Built-in regenerative brake resistor or

 

 

• Replace the servo amplifier or

 

 

regenerative brake option faulty.

 

 

regenerative brake option..

 

 

• Regenerative transistor faulty.

 

 

• Replace the servo amplifier.

 

 

[Checking method]

 

 

 

 

 

• The regenerative brake option has

 

 

 

 

 

overheated abnormally.

Any time during

Immediate

 

 

 

• Servo error [2030] occurs even after

operation

stop

 

 

 

removal of the built-in regenerative

 

 

 

 

 

brake resistor or regenerative brake

 

 

 

 

 

option.

 

 

 

 

 

• Command speed is too high. (Motor

 

 

• Check the servo program or

 

 

speed has exceeded the instantaneous

 

 

mechanical system program,

 

 

permissible speed.)

 

 

and set correctly.

 

 

• Small acceleration/deceleration time

 

 

• If an overshoot occurs during

 

 

constant caused overshoot to be large.

 

 

acceleration/deceleration, check

 

 

 

 

 

the acceleration/deceleration

 

 

 

 

 

time in the fixed parameters.

 

 

• Servo system is instable to cause

 

 

• Re-set servo gain to proper

 

 

overshoot.

 

 

value.

 

 

 

 

 

• If servo gain cannot be set to

2031

Overspeed

 

 

 

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.

 

 

• Encoder faulty.

 

 

• Replace the servomotor.

 

 

 

 

 

 

APP - 25