Mitsubishi Electric C70 Setup Manual page 581

MITSUBISHI CNC
Appendix 2 Explanation of Alarms
Main side detector: Error 2
Alarm No.
The motor side detector (CN2 side) detected an error.
2C (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.
Main side detector: Error 3
Alarm No.
The motor side detector (CN2 side) detected an error.
2D (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.
Main side detector: Error 4
Alarm No.
The motor side detector (CN2 side) detected an error.
2E
(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.
Main side detector: Communication error
Alarm No.
An error was detected in communication data with the motor side detector or with the linear scale of a linear servo system.
2F
Or the communication was interrupted.
Investigation details
Jiggle the detector connectors (drive unit
1 side and detector side) and check if they are
disconnected.
Is the detector cable wired in the same
conduit as the motor's power cable, or are
2
the two cables laid in parallel near each
other?
Is the motor FG wire connected only to the
3 drive unit which drives it?
(Is the motor grounded to one point?)
Turn the power OFF, and check the detector
4 cable connection with a tester. (Is the cable
shielded?)
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)
564
Investigation results
Investigation results
Investigation results
Investigation results
The connector is disconnected (or loose).
The connector is not disconnected.
The cables are wired near each other.
(Noise is entering from the power cable.)
The wires are sufficiently separated.
The motor FG wire is grounded on the motor
side.
The motor is grounded to one point.
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.
Remedies
Remedies
Remedies
Remedies
Correctly install.
Check the investigation item No. 2.
Improve the cable wiring.
Check the investigation item No. 3.
Ground the motor to one point, connecting
the wires together on the drive unit side.
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
SV SP