APPENDICES

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

Error

 

Error cause

Error check

Error

Corrective action

code

Name

Description

processing

 

 

 

 

• Ambient temperature of servomotor is

 

 

• Review environment so that

 

 

over 40[°C] (104[°F]).

 

 

ambient temperature is 0 to

 

Servo motor

 

 

 

49[°C] (32 to 104[°F]).

2142

• Servomotor is overloaded.

 

Operation

• Reduce load.

overheat

 

(AL.E2)

warning

 

 

continues

• Review operation pattern.

 

 

 

 

 

• Use servomotor that provides

 

 

 

 

 

larger output.

 

 

• Thermistor in encoder is faulty.

 

 

• Replace the servomotor.

 

 

• Absolute position encoder pulses faulty.

 

Operation

• Take noise suppression

 

 

 

 

continues

measures.

 

Absolute

 

 

 

• Replace the servomotor.

2143

 

 

Home

• Execute the home position return

(AL.E3)

position counter

 

 

position

after measures.

 

warning

 

 

return

 

 

 

 

 

 

 

 

 

 

request

 

 

 

 

 

ON

 

2146

Servo forced

• Servo amplifier are forced stop state.

 

 

• Ensure safety and deactivate

(Servo amplifier input signal EM1 is

 

 

forced stop.

(AL.E6)

stop warning

 

 

OFF.)

 

Immediate

 

 

 

 

 

2147

Controller

• A forced stop signal is input from the

Any time during

stop

• Ensure safety and deactivate

Motion CPU

 

forced stop.

(AL.E7)

forced stop

operation

 

 

 

 

 

warning

 

 

 

 

 

 

• Cooling fan life expiration

 

 

• Replace the cooling fan of servo

2148

Cooling fan

• The power supply of the cooling fan is

 

 

amplifier.

speed reduction

broken.

 

 

• Replace the servo amplifier.

(AL.E8)

warning

 

 

 

• Replace the cooling fan of servo

 

 

 

 

 

amplifier.

2149

Main circuit off

• Servo-on signal was turned on with main

 

 

• Switch on the main circuit power.

(AL.E9)

warning

circuit power off.

 

 

 

 

 

• During a stop, the status in which a

 

 

• Reduce the positioning frequency

 

 

current flew intensively in any of the U, V

 

Operation

at the specific positioning

2152

Overload

and W phases of the servomotor

 

continues

address.

occurred repeatedly, exceeding the

 

 

• Reduce the load.

(AL.EC)

warning 2

 

 

warning level.

 

 

• Replace the servo amplifier/

 

 

 

 

 

 

 

 

 

servomotor with the one of larger

 

 

 

 

 

capacity.

 

 

• Continuous operation was performed

 

 

• Reduce the servomotor speed.

2153

Output watt

with the output wattage (speed

 

 

• Reduce the load.

(AL.ED)

excess warning

torque) of the servomotor exceeding

 

 

 

 

 

150[%] of the rated output.

 

 

 

 

 

 

 

 

 

APP - 31