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MITSUBISHI CNC
Appendix 2 Explanation of Alarms
NC command error
Alarm No.
35
The travel command data that was received from the CNC was excessive.
Investigation details
1 Check the alarm No. "34" items.
NC-DRV communication: Communication error
Alarm No.
36
The communication with the CNC was interrupted.
Investigation details
1 Check the alarm No. "34" items.
Initial parameter error
Alarm No.
37
An incorrect parameter was detected among the parameters received from the CNC at the power ON.
Investigation details
Check if the unit in which the alarm
1
was detected is servo axis or spindle.
Check the error parameters displayed
on the NC diagnosis screen.
2
Servo parameters: SV001 to SV065,
SV082
Check the error parameters displayed
3
on the NC diagnosis screen.
Spindle parameters: SP001 to SP240
4 Check the alarm No. "34" items.
NC-DRV communication: Protocol error 1
Alarm No.
38
An error was detected in the communication frames received from the CNC.
Investigation details
1 Check the alarm No. "34" items.
Alarm No.
NC-DRV communication: Protocol error 2
39
An error was detected in the axis information data received from the CNC.
Investigation details
1 Check the alarm No. "34" items.
620
Investigation results
Investigation results
Investigation results
The alarm was detected in servo axis. Check the investigation item No. 2.
The alarm was detected in spindle.
Wrong parameters were set.
The electronic gears are overflowing.
The absolute position detection
parameter is valid when OSE104 and
OSE105 are connected. (Absolute
position control cannot be used.)
SV082/bitC to F are the same setting
in one unit.
SV082/bitC to F are not the same
setting in one unit.
Correct parameters were set.
The setting is wrong.
The set parameters are correct.
The set parameter value is different
from that of the machine specified
detector.
Investigation results
Investigation results
Remedies
Remedies
Remedies
Check the investigation item No. 3.
Correct the parameter setting.
Set the value within the designated
setting range.
Set SV001, SV002 and SV018 so that
they meet the machine specifications.
In order to use the absolute position
control function, an absolute position
option is required.
Correct the setting of SV082/bit0 to B.
Correct to the same setting.
Check the investigation item No. 4.
Correct the parameter setting.
Set the value within the designated
setting range.
Check the investigation item No. 4.
Change the setting to meet the
machine specifications.
Remedies
Remedies
SV SP
SV SP
SV SP
SV SP
SV SP
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Troubleshooting
