C70 Setup Manual
Appendix 2.16 Troubleshooting
565
Alarm No.
30
Over regeneration:
Over-regeneration detection level became over 100%. The regenerative resistor is overloaded.
Investigation details
Investigation results
Remedies
SV
SP
1
Check if the regenerative capacity exceeds
the regenerative resistor tolerable capacity.
The regenerative capacity exceeds the
regenerative resistor tolerable capacity.
Add the option regenerative resistor or
replace it.
The regenerative resistor selection is
appropriate.
Check the investigation item No. 2.
2
Check if the parameter is set incorrectly,
and check the values of sv036 and sp032.
The parameters are set incorrectly.
Change the parameters.
The parameters are correct.
Check the investigation item No. 3.
3
Is an external regenerative resistor used?
An external regenerative resistor is used.
Check the investigation item No. 5.
A built-in regenerative resistor is used.
Check the investigation item No. 4.
4
Is the short wire connected between P and
D terminal? Are there any problems with the
connection condition?
The wire is not connected.
Connect the wire.
The connector is disconnected.
The connector has a contact fault.
Reconnect the connector.
Replace the connector.
5
Is the connection of the regenerative
resistor or regeneration resistor cable
correct?
The connection is incorrect.
Rewire.
The connection is correct.
Check the investigation item No. 6.
6
Is the regeneration resistor or the
regeneration resistor cable broken?
Disconnect the regenerative resistor
terminal and check the resistance value with
a tester.
The regeneration resistor is broken. Or the
resistance value is large.
Replace the regenerative resistor.
The regeneration resistor cable is broken.
Replace the cable.
The resistance value is normal.
Check the investigation item No. 7.
7
Check if the power supply voltage is too
high.
The power supply voltage exceeded 253V. Review the power supply.
The power supply voltage is normal.
Replace the drive unit.
Alarm No.
31
Overspeed
The motor was detected to rotate at a speed exceeding the allowable speed (In the case of linear motor, it was detected
to move at a speed exceeding the allowable speed).
Investigation details
Investigation results
Remedies
SV
SP
1
Check if the unit in which the alarm was
detected is servo or spindle.
The alarm was detected in servo.
Check the investigation item No. 2.
The alarm was detected in spindle.
Check the investigation item No. 3.
2
Check the servo parameters SV001 (PC1),
SV002 (PC2), SV018 (PIT) and SV025
(MTYP) settings.
The settings are incorrect.
Correctly set.
Correctly set.
Check the investigation item No. 5.
3
Check the spindle parameter SP026 (TSP)
setting.
The setting is incorrect.
The alarm is detected at 115% of SP026.
Correctly set.
Correctly set.
Check the investigation item No. 4.
4
Check the PLG output waveform.
There is a problem.
Adjust the PLG output waveform.
Normal.
Check the investigation item No. 5.
5
Check whether the speed waveform is
overshooting.
The waveform is overshooting.
Increase the acceleration/ deceleration time
constant.
Lower the load inertia.
The waveform is not overshooting.
Check if there is any abnormality in the
unit's ambient environment.
(Ex.: Ambient temperature, noise,
grounding)
Check the investigation item No. 6.
6
Check the repeatability.
[1] The alarm occurs when the motor is
stopped.
[2] The rotation speed displayed on the
drive monitor varies when the motor is
stopped.
Replace the detector or detector cable.
The alarm occurs at all time.
Replace the drive unit.
Содержание C70
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Страница 18: ...1 1 Outline ...
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Страница 22: ...5 2 GOT Initial Setup ...
Страница 73: ...2 GOT Initial Setup MITSUBISHI CNC 56 ...
Страница 74: ...57 3 PLC CPU Initial Setup ...
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Страница 92: ...75 4 CNC CPU Initial Setup ...
Страница 105: ...4 CNC CPU Initial Setup MITSUBISHI CNC 88 ...
Страница 106: ...89 5 Connecting and Setting up Multiple CNC CPU Modules ...
Страница 115: ...5 Connecting and Setting up Multiple CNC CPU Modules MITSUBISHI CNC 98 ...
Страница 116: ...99 6 Setting Machine Parameters ...
Страница 130: ...113 7 Setting the Position Detection System ...
Страница 153: ...7 Setting the Position Detection System MITSUBISHI CNC 136 ...
Страница 154: ...137 8 Deceleration Check ...
Страница 159: ...8 Deceleration Check MITSUBISHI CNC 142 ...
Страница 160: ...143 9 Setting the Tool Entry Prohibited Range ...
Страница 169: ...9 Setting the Tool Entry Prohibited Range MITSUBISHI CNC 152 ...
Страница 170: ...153 10 Data Backup and Restoration ...
Страница 184: ...167 Appendix 1 Explanation of Parameters ...
Страница 435: ...Appendix 1 Explanation of Parameters MITSUBISHI CNC 418 ...
Страница 436: ...419 Appendix 2 Explanation of Alarms ...
Страница 608: ...591 Appendix 3 Display on 7 segment LED ...
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