LmrXP142机械手册.pdf - 第110页

AC Servopack Check List for Troubleshooting Alarm title Alarm Cause Investigation and corrective actions NP1MT006Ea B5H Over speed and multiple rotations generation abnormality When abnormalities are detected in the inte…

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Part 5 Chapter 1 Servo System Troubleshooting
Edition 3.0 5-1-10 XP-142E Mechanical Reference
Alarm titleAlarm Cause Investigation and corrective actions
NP1MT005Ea
A5H Encoder abnormality 3
When abnormalities are detected
in the internal part of the absolute
position detector for the
asynchronous system.
Defect in internal circuit of encoder. Turn ON the power supply again; if not restored, replace the motor.
Malfunction due to noise • Confirm proper grounding of the amplifier.
• Check the shielding of the encoder cable.
• Add ferrite core or similar countermeasures against noise.
Number of rotations exceeds the permitted number of
rotations.
Turn ON the power supply again, when motor is stopped.
A6H Encoder abnormality 4
When abnormalities are detected
in the internal part of the absolute
position detector for the
asynchronous system.
Defect in internal circuit of encoder Turn ON the power supply again; if not restored, replace the motor.
Malfunction due to noise Confirm proper grounding of the amplifier.
Check the shielding of the encoder cable.
Add ferrite core or similar countermeasures against noise.
Malfunction due to noise • Confirm proper grounding of the amplifier.
• Check the shielding of the encoder cable.
• Add ferrite core or similar countermeasures against noise.
Multi-rotation counter overflows. Correct the operation pattern, and avoid the continuous operation in
a fixed direction.
A7H
A8H
Encoder abnormality 5
Encoder abnormality 6
When abnormalities are detected
in the internal part of the absolute
position detector for the
asynchronous system.
Defect in internal circuit of encoder Turn ON the power supply again; if not restored, replace the motor.
Low battery voltage Check the battery voltage.
A1H Encoder abnormality 1
When abnormalities are detected
in the internal part of the absolute
position detector (RA062M) for
the asynchronous system.
Defect in internal circuit of encoder Turn ON the power supply again; if not restored, replace the motor.
A2H Abnormality in absolute
encoder battery
Loose connection of battery cable. Confirm the battery connection in the front ON/OFF switch of the
amplifier.
Motor is not generating heat, but encoder ambient
temperature is high.
Confirm that the cooling method keeps the encoder ambient
temperature below 80 °C.
Motor is overheated. Confirm the cooling procedure of the servo motor.
A3H Encoder overheating
When abnormalities are detected
in the internal part of the absolute
position detector for the
asynchronous system.
Defect in internal circuit of encoder Turn ON the power supply again; if not restored, replace the motor.
AC Servopack Check List for Troubleshooting
Alarm titleAlarm Cause Investigation and corrective actions
NP1MT006Ea
B5H Over speed and multiple
rotations generation abnormality
When abnormalities are detected
in the internal part of the absolute
position detector for the
asynchronous system.
Defect in internal circuit of encoder. Turn ON the power supply again; if not restored, replace the motor.
Malfunction due to noise • Confirm proper grounding of the amplifier.
• Check the shielding of the encoder cable.
• Add ferrite core or similar countermeasures against noise.
Number of motor rotations exceeds the permitted speed. Check the operation pattern and reduce the maximum number of
rotations.
B7H Acceleration abnormality
When abnormalities are detected
in the internal part of the absolute
position detector for the
asynchronous system.
Defect in internal circuit of encoder. Turn ON the power supply again; if not restored, replace the motor.
Malfunction due to noise • Confirm proper grounding of the amplifier.
• Check the shielding of the encoder cable.
• Add ferrite core or similar countermeasures against noise.
The acceleration of motor rotation exceeds the permitted
acceleration
Check the operation pattern and extend the acceleration and
declaration time.
Malfunction due to noise • Confirm proper grounding of the amplifier.
• Check the shielding of the encoder cable.
• Add ferrite core or similar countermeasures against noise.
B2H Encoder abnormalities 2
When abnormality is detected in
the internal part of the absolute
position detector (RA062M) of
the Manchester system.
Defect in internal circuit of encoder Turn ON the power supply again; if not restored, replace the motor.
Malfunction due to noise • Confirm proper grounding of the amplifier.
• Check the shielding of the encoder cable.
• Add ferrite core or similar countermeasures against noise.
B3H
B4H
B6H
Absolute encoder rotations
counter abnormality
Absolute encoder 1 rotation
counter abnormality
Encoder memory error
When abnormalities are detected
in the internal part of the absolute
position detector for the
asynchronous system.
Defect in internal circuit of encoder. Turn ON the power supply again; if not restored, replace the motor.
Part 5 Chapter 1 Servo System Troubleshooting
Edition 3.0 5-1-11 XP-142E Mechanical Reference
AC Servopack Check List for Troubleshooting
Alarm titleAlarm Cause Investigation and corrective actions
NP1MT007E-1a
C3H Speed feedback abnormality Motor is not rotating. Confirm that the power line is properly connected.
Replace the servo motor.
Defect in internal circuit of servo amplifier. Replace the servo amplifier.
The motor is vibrating (oscillating). Adjust the servo parameter so that servo motor will not vibrate
(oscillate).
The wiring of A, B, phase of INC-E and ABS-EI encoder
connection is incorrect.
Check the wiring and repair any irregularities.
The motor is vibrating (oscillating). Adjust the servo parameters so that servo motor will not vibrate
(oscillate).
Abnormality in servo amplifier control circuit Replace the servo amplifier.
Excessive overshoot and undershoot. • Monitor speed with the analog monitor.
• Adjust the servo parameters to reduce overshoot and undershoot.
• Increase acceleration and declaration command time. Mask the
alarm.
C2H Speed control abnormality Wiring of U/V/W -phase between servo amplifier and
motor do not match.
Check the wiring and repair any irregularities.
Defect in the encoder of servo motor. Replace the servo motor.
Wiring of U/V/W -phase between servo amplifier and
motor do not match.
Check the wiring and repair any irregularities.
Excessive overshoot while starting. • Monitor speed with the analog monitor.
→ Adjust the servo parameters if overshoot is excessive.
→ Simplify the acceleration and declaration command pattern.
→ Reduce the load inertia.
C1H Over speed Defect in control panel of servo amplifier. Replace the servo amplifier.
Part 5 Chapter 1 Servo System Troubleshooting
Edition 3.0 5-1-12 XP-142E Mechanical Reference