LmrXP142机械手册.pdf - 第103页

AC Servopack Check List for Troubleshooting Alarm Alarm title Cause Investigation and corrective actions 21H Power device Abnormality (Over current) U/V/W-phases of amplifier is short circuited due to the wiring in ampli…

1.2 Alarm Codes and Troubleshooting Check List

Alarm status, cause, and remedy are listed in the following table to facilitate

troubleshooting of alarm codes.

Note: Some of the repairs, such as replacement of a servo motor or servo pack, require special

training and expertise. Contact a Fuji agent before attempting to perform any of these

procedures. Please have the “Check List for Troubleshooting” available for reference when

contacting a Fuji agent for assistance.

Part 5 Chapter 1 Servo System Troubleshooting

Edition 3.0 5-1-3 XP-142E Mechanical Reference

AC Servopack Check List for Troubleshooting

Alarm Alarm title Cause Investigation and corrective actions

21H Power device Abnormality

(Over current)

U/V/W-phases of amplifier is short circuited due to the

wiring in amplifier and motor. Also, U/V/W-phases are

grounded in the earth.

Check the wiring between the amplifier and motor, and confirm that

there is no error. If some error is detected, modify or change the

wiring.

Short circuit or fault in U/V/W-phases on servo motor

side.

Replace the servo motor.

• Defect in control print panel

• Defect in power device

Replace the servo amplifier.

Overheat is detected in Power device (IPM). • Confirm that the cooling fan motor for the servo amplifier is working.

If it is not working, replace the servo amplifier.

• Confirm that that the temperature of the control panel (ambient

temperature of the servo amplifier) does not exceed 55 degrees.

If in excess of 55 degrees, check the installation method of the

servo amplifier, and confirm that the cooling temperature of the

control panel is set to below 55 degrees.

22H

Electric current abnormality 0

• Defect in control print panel

• Defect in power device

Replace the servo motor.

Servo amplifier and motor are not combined properly. Confirm that the proper codes (per the specified Motor Codes) have

been used for the servo motor; if not, replace the servo motor.

23H

24H

Electric current abnormality 1

Electric current abnormality 2

Defect in internal circuit of servo amplifier Replace the servo amplifier

Malfunction due to noise Confirm proper grounding of the amplifier Add ferrite core or similar

countermeasures against noise.

NP1MT001Eb-1

Part 5 Chapter 1 Servo System Troubleshooting

Edition 3.0 5-1-4 XP-142E Mechanical Reference

AC Servopack Check List for Troubleshooting

Alarm titleAlarm Cause Investigation and corrective actions

NP1MT001Eb-2

41H Electrical overload 1 Defect in servo amplifier control panel or power element

peripheral

Replace the servo amplifier.

Defect in encoder circuit of servomotor. Replace the servo motor.

Effective torque exceeds the rated torque. • Monitor the motor-generated torque in the effective torque

estimated value (Trms), and confirm that the effective torque

exceeds the rated torque.

• (Or,) calculate the effective torque of the motor from its loading and

operating conditions

→ If the effective torque is excessive, check the operating or loading,

or replace the capacity of the large motor.

Defect in motor-amplifier combination. Check if the motor in use matches with the recommended type, and

replace if it is improper.

Holding brake of servo motor does not release. Check that the wiring and voltage of the holding brake are acceptable;

if not, repair.

→ If the above are OK, replace the servomotor.

Wiring of U/V/W-phase between servo amplifier and

motor do not match.

Check the wiring conditions and restore if improper.

One or all connections of U/V/W-phase wiring of servo

amplifier / motor is disconnected.

Check the wiring conditions and restore if improper.

Machines collided. Check the operating conditions and limit switch.

Encoder pulse number setting does not match with the

motor.

Match the encoder pulse number with the motor.

Part 5 Chapter 1 Servo System Troubleshooting

Edition 3.0 5-1-5 XP-142E Mechanical Reference