C70 Setup Manual
Appendix 2.16 Troubleshooting
583
Alarm No.
77
Power supply: Power module overheat
Thermal protection function in the power module has started its operation.
Investigation details
Investigation results
Remedies
CV
1
Confirm that the fan is properly rotating.
Large amounts of cutting oil or cutting chips,
etc., are adhered, or the rotation is slow.
Clean or replace the fan.
The fan is properly rotating.
Check the investigation item No. 2.
2
Check whether the heat dissipating fins are
dirty.
Cutting oil or cutting chips, etc., are
adhered, and the fins are clogged.
Clean the fins.
The fins are normal.
Check the investigation item No. 3.
3
Measure the power supply unit's ambient
temperature.
55
°
C or more
Improve the ventilation and cooling for the
power distribution panel.
Less than 55
°
C.
Check the investigation item No. 4.
4
Check if there is any abnormality in the
unit's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
Take remedies according to the causes of the abnormality in the ambient environment.
Alarm No.
80
Main side detector cable error
A pulse type cable is used for the motor side detector.
Investigation details
Investigation results
Remedies
SV
SP
1
Check the parameters.
Servo:SV025 = "x200"
Spindle:SP031 = "x200"
And then, check the connected cable and
the detector.
The cable type is pulse.
Replace the cable to the serial type.
There is no problem with the selection of the
detector and cable.
Replace the detector or cable.
Alarm No.
81
Sub side detector cable error
The cable type of machine side detector does not match the detector specifications set by the parameter.
Investigation details
Investigation results
Remedies
SV
SP
1
Check if the below parameters match the
connected detector and cable.
Servo: SV025
Spindle: SP031
The detector does not match the
specifications.
Replace the detector.
The parameter is not correct.
Set the parameters so that they meet the
machine side detector.
<Servo:SV025>
- Rotary
Pulse 2xxx
Serial 6xxx
- Scale
Pulse 8xxx
Serial Axxx
<Spindle:SP031>
Pulse 4200
Serial 6200
There is no problem with the selection of the
detector and cable.
Replace the detector or cable.
Alarm No.
87
Drive unit communication error
The communication frame between drive units was aborted.
Investigation details
Investigation results
Remedies
SV
SP
1
Check the connection of the optical
communication cable between drive units.
The cable and connector were loose.
Connect again so as not to be loosened.
The cable and connector were not loose.
Replace the cable.
Check the investigation item No. 2.
2
Check the repeatability.
The error is always repeated (in high-speed
synchronous tapping).
Replace the servo drive or spindle drive unit
that is used for high-speed synchronous
tapping.
Summary of Contents for C70
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Page 18: ...1 1 Outline ...
Page 21: ...1 Outline MITSUBISHI CNC 4 ...
Page 22: ...5 2 GOT Initial Setup ...
Page 73: ...2 GOT Initial Setup MITSUBISHI CNC 56 ...
Page 74: ...57 3 PLC CPU Initial Setup ...
Page 91: ...3 PLC CPU Initial Setup MITSUBISHI CNC 74 ...
Page 92: ...75 4 CNC CPU Initial Setup ...
Page 105: ...4 CNC CPU Initial Setup MITSUBISHI CNC 88 ...
Page 106: ...89 5 Connecting and Setting up Multiple CNC CPU Modules ...
Page 115: ...5 Connecting and Setting up Multiple CNC CPU Modules MITSUBISHI CNC 98 ...
Page 116: ...99 6 Setting Machine Parameters ...
Page 130: ...113 7 Setting the Position Detection System ...
Page 153: ...7 Setting the Position Detection System MITSUBISHI CNC 136 ...
Page 154: ...137 8 Deceleration Check ...
Page 159: ...8 Deceleration Check MITSUBISHI CNC 142 ...
Page 160: ...143 9 Setting the Tool Entry Prohibited Range ...
Page 169: ...9 Setting the Tool Entry Prohibited Range MITSUBISHI CNC 152 ...
Page 170: ...153 10 Data Backup and Restoration ...
Page 184: ...167 Appendix 1 Explanation of Parameters ...
Page 435: ...Appendix 1 Explanation of Parameters MITSUBISHI CNC 418 ...
Page 436: ...419 Appendix 2 Explanation of Alarms ...
Page 608: ...591 Appendix 3 Display on 7 segment LED ...
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