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MDS-D-SVJ3/SPJ3 Series Instruction Manual
6-3 Troubleshooting
6-3-3 Troubleshooting for each warning No.
Alarm No.
8B
Drive unit communication data error 2
The communication data 2 between drive units exceeded the tolerable value in the communication between
drive units.
Investigation details Investigation results Remedies SV SP
1
Check if the error was occurred during
the synchronous tapping.
The error occurs during the synchro-
nous tapping.
[1]Check the tool.
[2]Adjust the tapping.
Check if the error has occurred during
high-speed synchronous tapping.
Check the investigation item No. 2.
2 Check the repeatability.
The error is always repeated. Replace the drive unit.
The state returns to normal once, but
occurs sometimes thereafter.
Check the investigation item No. 3.
3
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 en-
vironment.
Warning No.
96
Scale feedback error
An excessive difference in feedback amount was detected between the main side detector and the MPI
scale in MPI scale absolute position detection system.
Investigation details Investigation results Remedies SV SP
1
Check if there is any abnormality in the
detector's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
Take remedies according to the causes of the abnormality in the ambient en-
vironment.
2 Check the repeatability.
Occurs frequently. Replace the detector.
Is not repeated. Check the investigation item No. 1.
Warning No.
97
Scale offset error
An error was detected in the offset data that is read at the NC power-ON in MPI scale absolute position
detection system.
Investigation details Investigation results Remedies SV SP
1
Check if there is any abnormality in the
detector's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
Take remedies according to the causes of the abnormality in the ambient en-
vironment.
2 Check the repeatability.
Occurs frequently. Replace the detector.
Is not repeated. Check the investigation item No. 1.
Warning No.
9B
Incremental detector/magnetic pole shift warning
For the incremental detector, an error was detected in the magnetic pole shift amount set in the magnetic
pole shift amount parameter "SV028".
Investigation details Investigation results Remedies SV SP
1
Check if there is any abnormality in the
detector's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
Take remedies according to the causes of the abnormality in the ambient en-
vironment.
2 Check the repeatability.
Occurs occasionally.
Execute magnetic pole detection con-
trol again and reset SV028.
Is not repeated. Check the investigation item No. 1.
Warning No.
9E
Absolute position detector: Revolution counter error
An error was detected in the revolution counter of the absolute position detector. The absolute position data
cannot be compensated.
Investigation details Investigation results Remedies SV SP
1
Check if there is any abnormality in the
detector's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
Take remedies according to the causes of the abnormality in the ambient en-
vironment.
2 Check the repeatability.
Occurs frequently. Replace the detector.
Is not repeated. Check the investigation item No. 1.