bnp-b2365(eng)b.pdf - 第315页
6. Troubleshooting 6 - 10 6-3 Troubleshooting Follow this section to troubleshoot the alarm s that occur during start up o r while the machine is operating. If the state is not improved with the fo llowing investig ation…
6. Troubleshooting
6 - 9
6-2-2 List of warnings
When a warning occurs, a warning No. will appear on the NC m onitor screen and with the LEDs on the
front of the drive unit. Check the warning No., and remove the cause of the warning by following this
list.
Drive unit warnings
No. Alarm name Warning details Reset
90 Detector, initial communication error Initial communication with the absolute position linear scale was not
possible.
PR
91 Detector, communication error An error was detected in the communication with the detector for the
absolute position detection system.
*
92 Detector, protocol error An error was detected in the data for the absolute position detection system. *
93 Initial absolute position fluctuation The position data fluctuated when creating the initial absolute position. PR
96 MP scale feedback error An excessive deviation was detected in the motor end detector and MP
scale feedback data for the MP scale absolute position detection system.
*
97 MP scale offset error An error was detected in the offset data received from the MP scale for the
MP scale absolute position detection system.
PR
9E Absolute position detector, multi-
rotation counter error
An error was detected in the multi-rotation counter for the absolute position
detector. The absolute position cannot be compensated.
*
9F Battery voltage drop The voltage of the battery supplying to the absolute position detector has
dropped. The absolute position data is held.
*
A8 Turret indexing error warning The commanded turret indexing position shift amount is not within the
specified range.
*
A9 Orientation feedback error warn Retrying during an orientation feedback error. *
E1 Overload warning The overload detection level is 80% or more. *
E3 Absolute position counter warning A deviation w as detected in the absolute position data and absolute position
data.
*
E4 Parameter error warning A parameter exceeding the setting range was set. *
E6 Control axis removal warning Control axis removal was commanded. *
E7 CNC emergency stop Emergency stop was input from the NC. *
(Note 1) Servo and spindle motor do not stop when the warning occurs.
(Note 2) When an emergency stop is input, servo and spindle motor decelerate to a stop.
(When SV048, SV055 or SV056 is set for servo an d when SP038/bit 0=1is set.)
Power supply warnings
No.
LED
display
Alarm name CV CR Warning details Reset
E8
Auxiliary regeneration
frequency over
{
Regeneration at the power supply performance limit is occurring
frequently.
*
E9
Instantaneous power failure
warning
{
An instantaneous power failure occurred. NR
EA
External emergency stop
{
The external emergency stop signal was input. *
EB
Over-regeneration warning
{
The over-regeneration level is 80% or more. *
(Note) Servo and spindle motor do not stop when the warning occurs.
Resetting methods
* : Automatically reset once the cause of the warning is removed.
NR : Reset with the NC RESET button. This warning can also be reset with the PR and AR resetting conditions.
PR : Reset by turning the NC power ON again. This warning can also be reset with the AR resetting conditions.
When the control axis is removed, this warning can be reset with the NC RESET button. (Excluding warning 93.)
6. Troubleshooting
6 - 10
6-3 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 che c k whether the state is improved.
6-3-1 Troubleshooting at power ON
If the NC system does not start up correctly and a system error occurs when the NC power is turned
ON, the drive unit may not have been started up pro perly. Check th e LED displa y on the drive unit, and
take measures according to this section.
LED
display
Symptom Cause of occurrence Investigation m etho d Remedy
The drive unit axis No.
setting is incorrect.
Is there any other drive unit that has the
same axis No. set?
Set correctly.
The CNC setting is incorrect. Is the No. of CNC controlled axes
correct?
Set correctly.
Is the connector (CN1A, CN1B)
disconnected?
Connect correctly.
AA Initial communication with
the CNC was not
completed correctly.
Communication with CNC is
incorrect.
Is the cable broken?
Check the conductivity with a tester.
Replace the cable.
The axis is not used, the
setting is for use inhibiting.
Is the axis setting rotary switch set to "7"
to "F"?
Set correctly.
Is the connector (CN1A, CN1B)
disconnected?
Connect correctly.
Ab Initial communication w ith
the CNC was not carried
out.
Communication with CNC is
incorrect.
Is the cable broken?
Check the conductivity with a tester
Replace the cable.
Check the repeatability. Replace the unit. 12 An error was detected in
the unit's memory and IC
during the self-diagnosis
at power ON.
The CPU peripheral circuit is
abnormal.
Check whether there is any abnormality
with the unit's surrounding environment,
etc.
Improve the
surrounding
environment.
The drive unit has started up normally if the following type of emergency stop (E7) is displayed on the
display unit's LED display.
F1
F+axis No.
E7
Emergency stop
Not lit F1
F+axis No.
E7
Emergency stop
Normal drive unit LED display at NC power ON (for 1st axis)
6. Troubleshooting
6 - 11
6-3-2 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 "6-3-1 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.
{