LmrXP142机械手册.pdf - 第105页
AC Servopack Check List for Troubleshooting Alarm title Alarm Cause Investigation and corrective actions NP1MT002Ea 43H Regeneration abnormality • Exceeded permitted value of regenerating power in built-in regenerative r…
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
AC Servopack Check List for Troubleshooting
Alarm titleAlarm Cause Investigation and corrective actions
NP1MT002Ea
43H Regeneration abnormality • Exceeded permitted value of regenerating power in
built-in regenerative resistance specifications.
• Excessive load inertia, or tact time is short.
• Check the load inertia and operating pattern.
• Use an external regeneration resistor.
• Set the load inertia within the specified range.
• Increase the deceleration time.
• EIncrease the tact time.
Regenerative resistance wiring conflicts with built-in
regenerative resistance specifications.
Check wiring and replace if incorrect.
Regenerative resistance wiring conflicts with external
regeneration resistor specifications.
Check wiring and replace if incorrect.
Regeneration resistor is disconnected. • For built-in regeneration resistor specifications, replace the servo
amplifier.
• For external regeneration resistor specifications, replace the
regeneration resistor.
Resistance value of external regeneration resistor is
excessive.
Replace the current resistance value with a value matching the
specifications.
Input power supply voltage exceeds the specified range. Check the input power supply voltage level.
Defect in control circuit of servo amplifier. Replace the servo amplifier.
When external regenerative resistance is selected for
system parameter Page OE and external regenerative
resistance is not installed.
• Install the external regenerative resistance.
• Set to "Do not connect regenerative resistance".
51H Amplifier overheating Defect in internal circuit of servo amplifier. Replace the servo amplifier.
Regenerating power exceeded. • Check the operating conditions.
• Use external regeneration resistor.
Regenerating power is within the specified range but
ambient temperature of servo amplifier is out of specified
range.
Confirm that the cooling method maintains the temperature of control
panel between 0 to 55 degrees.
Regenerating power is within the specified range but
built-in cooling fan of servo amplifier is stopped.
For an amplifier equipped with a fan motor, check that the fan motor
is running; if not, replace the servo amplifier.
Regeneration energy during emergency stop exceeded. • Change the servo amp.
• Check the loading condition.
Part 5 Chapter 1 Servo System Troubleshooting
Edition 3.0 5-1-6 XP-142E Mechanical Reference
AC Servopack Check List for Troubleshooting
Alarm titleAlarm Cause Investigation and corrective actions
NP1MT003Ea
54H Internal overheating Defect in internal circuit of servo amplifier. Replace the servo amplifier.
Regenerating power excessive. • Check the built-in regenerative resistance absorption power.
• Check the operating conditions, so that regenerating power is
within permitted absorption power.
• Use an external regeneration resistor.
Improper wiring of built-in regeneration resistor. Confirm improper condition and repair if necessary.
55H External overheating
When external regenerative
resistor and output terminal
of upper device are not
connected
Validity condition for external trip function is set to 'Valid'. When not in use, set 00:_Always_Disable for Group8, PA807.
Defect in control panel of servo amplifier. Replace the servo amplifier.
External regeneration resistor is operating. • Check the operating conditions.
• Increase the capacity of the external regeneration resistor.
Defect in control panel of servo amplifier. Replace the servo amplifier.
55H External abnormality
When external regenerative
resistor is not connected.
Improper wiring of external regenerative resistance. Check wiring and replace if necessary.
The power supply voltage of main circuit exceeds the
rated value.
Reduce the power supply voltage to within the specified range.
Excessive load inertia. Reduce the load inertia to within the specified range.
• Improper wiring of CND connector.
• Built-in regeneration circuit is not functioning.
• Properly install the regenerative resistance wiring. Connect the
regenerative resistance wiring to the P and Y terminals of the CND
connector.
• While using the external regenerative resistance, check the wiring
and resistance value. ÅEReplace the servo amplifier if any
abnormality occurs.
61H Over voltage Defect in control panel of servo amplifier. Replace the servo amplifier.
53H DB resistor overheating Defect in internal circuit of servo amplifier. Replace the servo amplifier.
DB operation frequency exceeded. Ensure that the dynamic brake frequency does not exceed its limit.
Part 5 Chapter 1 Servo System Troubleshooting
Edition 3.0 5-1-7 XP-142E Mechanical Reference