6. Troubleshooting
6 - 11
6-4 Troubleshooting
Follow this section to troubleshoot the alarms that occur during start up or while the machine is
operating. If the state is not improved with the following investigations, the drive unit may be faulty.
Exchange the unit with another unit of the same capacity, and check whether the state is improved.
6-4-1 Troubleshooting for each alarm No.
Alarm No.
11
Axis selection error
The axis No. selection switch setting is incorrect.
Investigation details Investigation results Remedies SV SP
1 Check the setting of the axis
selection switch on the top of the unit.
The same axis No. is set for the L and
M axes.
Correctly set the axis No.
0 = No. 1 axis, 1 = No. 2 axis, ...
{
Alarm No.
12
Memory error 1
A CPU or internal memory error was detected during the self-check at power ON.
Investigation details Investigation results Remedies SV SP
1 Refer to "6-2 Troubleshooting at power ON".
{ {
Alarm No.
13
Software processing error 1
The software process was not completed within the specified time. (CPU1)
Investigation details Investigation results Remedies SV SP
The version was changed. Try replacing with the drive unit
containing the original software
version.
1 Check whether the servo software
version was changed recently.
The version was not changed. Investigate item 2.
{ {
The error is always repeated. Replace the drive unit. 2 Check the repeatability.
The state returns to normal once, but
occurs sometimes thereafter.
Investigate item 3.
{ {
No abnormality is found in particular. Replace the drive unit. 3 Check if there is any abnormality in
the unit's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
An abnormality was found in the
ambient environment.
Take remedies according to the
causes of the abnormality.
Ex. High temperature:
Check the cooling fan.
Incomplete grounding:
Additionally ground.
{ {
Alarm No.
14
Software processing error 2
The software process was not completed within the specified time. (CPU2)
Investigation details Investigation results Remedies SV SP
1 Carry out the items for alarm No. 13.
{ {
Alarm No.
16
Magnetic pole position detection error
Creation of the initial magnetic pole, required for motor control, was not completed.
Investigation details Investigation results Remedies SV SP
It was replaced. Carry out automatic adjustment of the
PLG Z-phase.
1 Was the spindle drive unit replaced?
It was not replaced. Investigate item 2.
{
SP205 = 0 Carry out automatic adjustment of the
PLG Z-phase.
2 Check the spindle parameters.
SP205 = 1 Set SP205 to 0, and turn the NC
power ON again. Then, carry out
automatic adjustment of the PLG
Z-phase.
{
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