Mitsubishi Electric M700VS Series Setup Manual page 626

Initial magnetic pole position detection error
Alarm No.
In linear motor or IPM spindle motor using absolute position detector, the servo ON has been set before the
16
magnetic pole shift amount(servo:SV028,spindle:SP118) is set. In the initial magnetic pole position
detection control, the pole position was not correctly set.
Investigation details
Check the parameters, SV028 (for the
1
servo) and SP118(for the spindle).
2 Check the repeatability.
Check if there is any abnormality in the
unit's ambient environment.
3
(Ex. Ambient temperature, noise,
grounding)
A/D converter error
Alarm No.
17
An error was detected in the current FB.
Investigation details
1 Check the repeatability.
Check if there is any abnormality in the
unit's ambient environment.
2
(Ex. Ambient temperature, noise,
grounding)
Alarm No. Main side detector: Initial communication error
18
An error was detected in the initial communication with the motor side detector.
Investigation details
Check the servo parameter
(SV025.ent) setting value.
1
Check the spindle parameter(SP020)
setting value.
Check the detector.
2 Check if a pulse detector is used for
serial detector specifications.
Jiggle the detector connectors (drive
3 unit side and detector side) and check
if they are disconnected.
Turn the power OFF, and check the
4 detector cable connection with a
tester.
Replace with another unit, and check
5 whether the fault is on the unit side or
detector side.
Check if there is any abnormality in the
detector's ambient environment.
6
(Ex. Ambient temperature, noise,
grounding)
Investigation results
The parameters have not been set.
The parameters have been set, but
the alarm occurs.
The setting parameter value is the
same even when initial magnetic pole
function was executed again.
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.
[1] Machine grounding check
[2] Shield connection of the cable
Investigation results
The error is always repeated.
The state returns to normal, but occurs
thereafter.
Take remedies according to the causes of the abnormality in the ambient
environment.
Investigation results
The value is not set correctly.
The value is set correctly.
The pulse detector is used.
The serial detector is used.
The connector is disconnected (or
loose).
The connector is not disconnected.
The connection is faulty.
The connection is normal.
The alarm is on the drive unit side.
The alarm is on the detector side.
Take remedies according to the causes of the abnormality in the ambient
environment.
[1] Machine grounding check
[2] Shield connection of the cable
M700VS Series Setup Manual
Appendix 2.13 Troubleshooting
Remedies
Set the magnetic shift pole
amount(SP118).
Carry out the magnetic pole estimation
again, as the setting value is wrong.
Check the investigation item No. 2.
Replace the drive unit.
Check the investigation item No. 3.
Remedies
Replace the drive unit.
Check the investigation item No. 2.
Remedies
Correctly set SV025 for the servo, and
SP020 for the spindle.
Check the investigation item No. 3.
Replace the detector to the serial.
Check the investigation item No. 3.
Correctly install.
Check the investigation item No. 4.
Replace the detector cable.
Check the investigation item No. 5.
Replace the drive unit.
Check the investigation item No. 6.
SV SP
SV SP
SV SP
609