APPENDICES

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

Error

 

Error cause

Error check

Error

Corrective action

code

Name

Description

processing

 

 

 

 

• The speed of linear encoder has

 

 

• Change the speed of linear

 

 

exceeded the range of use.

 

 

encoder within the range of use.

 

 

• Noise entered.

 

 

• Take the noise reduction

2061

Linear encoder

 

Any time during

 

measures.

(AL.2A)

error 1

• Alarm of the linear encoder.

operation

 

• Contact with the linear encoder

 

 

 

 

 

manufacturer.

 

 

• Defective installation positions of the

 

 

• Adjust the positions of the scale

 

 

scale and head.

 

 

and head.

 

 

• The connector CN2L is disconnected.

 

 

• Connect correctly.

 

 

• Faulty of the load side encoder cable

 

 

• Repair or change the cable.

 

 

• Wrong wiring of the load side encoder

 

 

• Review the wiring connection.

 

 

cable

• Servo amplifier

 

 

 

 

• The load side encoder cable type (2-

 

• Correct the setting in the fourth

2070

Load side

power on.

Immediate

encoder error 1

wire, 4-wire) selection was wrong in the

• Multiple CPU

stop

digit of parameter No. PC26

 

 

parameter setting.

system power on.

 

encoder cable communication

 

 

 

 

system selection)..

 

 

 

 

 

 

 

• The startup timing is slow.

 

 

• Make the startup timing of the

 

 

(For the load side encoder with the

 

 

external power supply fast.

 

 

external power supply input)

 

 

 

 

 

• Faulty of the load side encoder cable

 

 

• Repair or change the cable.

 

Load side

• Wrong wiring of the load side encoder

 

 

• Review the wiring connection.

2071

cable

 

 

 

encoder error 2

 

 

 

• The power supply voltage dropped.

 

 

• Check the power supply capacity

 

 

(For the load side encoder with the

 

 

and voltage.

 

 

external power supply input)

 

 

 

2088

Watchdog

• CPU, parts faulty

 

 

• Replace the servo amplifier.

 

 

 

 

(88)

 

 

 

 

 

 

 

• Bttery cable for absolute position

 

 

• Repair the cable or replace the

 

 

detection system is open.

 

 

battery.

2102

Open battery

• Voltage of battery for absolute position

 

 

• Replace the battery.

(AL.92)

cable warning

detection system supplied fell to about

 

 

 

 

 

3V or less.

 

 

 

 

 

(Detected with the encoder.)

 

 

 

 

 

• After home position return, droop pulses

 

 

• Re-try the home position return.

2106

Home position

remaining are greater than the in-

 

 

 

(AL.96)

setting warning

position range setting.

 

 

 

 

 

• Creep speed is high.

Any time during

 

• Reduce the creep speed.

 

 

• Voltage of battery for absolute position

operation

Operation

• Replace the battery.

2116

Battery warning

detection system installed to servo

 

continues

 

(AL.9F)

amplifier fell to 3.2V or less.

 

 

 

 

 

(Detected with the servo amplifier.)

 

 

 

 

 

 

 

 

 

 

 

• There is a possibility that regenerative

 

 

• Refer to the details on the

2140

Excessive

alarm [2030] may occur.

 

 

regenerative alarm [2030].

regenerative

(Detected 85[%] regenerative level of

 

 

 

(AL.E0)

warning

the maximum load capacity for the

 

 

 

 

 

regenerative register.)

 

 

 

2141

Overload

• There is a possibility that overload alarm

 

 

• Refer to the details on the

[2050], [2051] may occur.

 

 

overload alarm [2050], [2051].

(AL.E1)

warning 1

 

 

(Detected 85[%] overload level.)

 

 

 

 

 

 

 

 

APP - 30