Mitsubishi Electric C70 Setup Manual page 580

Alarm No.
Absolute position data lost
25
The absolute position was lost, as the backup battery voltage dropped in the absolute position detector.
Investigation details
1 Is warning 9F occurring at the same time?
Measure the battery voltage with a tester at
2
the DC range.
Did alarm No.18 occur when the power was
3
turned ON the last time?
Was the detector cable or battery cable left
4
disconnected from the unit for a long time?
Check the detector cable or battery cable
5
connection with a tester.
Alarm No.
Unused axis error
26
A power module error occurred in the axis whose axis No. selection switch was set to "F" (free axis).
Investigation details
1 Check the repeatability.
Check if there is any abnormality in the
unit's ambient environment.
2
(Ex. Ambient temperature, noise,
grounding)
Sub side detector: Error 5
Alarm No.
The machine side detector (CN3 side) detected an error. As details differ for each detector, refer to "Appendix 2.3.1" for
27
the description of this alarm.
Investigation details
1 Check the alarm No. "1B" items.
Sub side detector: Error 6
Alarm No.
The machine side detector (CN3 side) detected an error. As details differ for each detector, refer to "Appendix 2.3.1" for
28
the description of this alarm.
Investigation details
1 Check the alarm No. "1B" items.
Sub side detector: Error 7
Alarm No.
The machine side detector (CN3 side) detected an error. As details differ for each detector, refer to "Appendix 2.3.1" for
29
the description of this alarm.
Investigation details
1 Check the alarm No. "1B" items.
Sub side detector: Error 8
Alarm No.
The machine side detector (CN3 side) detected an error. As details differ for each detector, refer to "Appendix 2.3.1" for
2A
the description of this alarm.
Investigation details
1 Check the alarm No. "1B" items.
Main side detector: Error 1
Alarm No.
The motor side detector (CN2 side) detected an error.
2B
(Note) It includes the linear scale in the case of linear motor.
As details differ for each detector, refer to "Appendix 2.3.1" for the description of this alarm.
Investigation details
1 Check the alarm No. "1B" items.
Investigation results
The warning is occurring.
The warning is not occurring.
Less than 3V.
3V or more.
Alarm No.18 occurred.
Alarm No.18 did not occur.
The unit was left disconnected for a long
time.
Guide at delivery: 20 hours or more
After 5 years: 10 hours or more
The cables were not left disconnected.
The connection is faulty.
The connection is normal.
Investigation results
The error is always repeated.
The state returns to normal once, but occurs
sometimes thereafter.
Take remedies according to the causes of the abnormality in the ambient environment.
Investigation results
Investigation results
Investigation results
Investigation results
Investigation results
Appendix 2.16 Troubleshooting
Remedies
Check the investigation item No. 2.
Check the investigation item No. 3.
Replace the battery, and establish the zero
point.
Check the NC bus cable connection.
Turn the drive unit control power ON again,
and establish the zero point.
Check the investigation item No. 4.
Turn the drive unit control power ON again,
and establish the zero point.
Check the investigation item No. 5.
Replace the cable.
Replace the drive unit.
Remedies
Replace the drive unit.
Check the investigation item No. 2.
Remedies
Remedies
Remedies
Remedies
Remedies
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