bnp-b2365(eng)b.pdf - 第320页
6. Troubleshooting 6 - 15 Alarm No. 21 Machine side detector , No signal 2 The pulse-type linear scale or ball screw end detec tor's ABZ-phase no signal w as detected with the servo, or the encoder no-signal was det…
6. Troubleshooting
6 - 14
Alarm No.
1F
Machine side detector, communication error
An error was detected in the communication data with the linear scale or ball screw end detector. Or,
the communication was cut off.
Investigation details Investigation results Remedies SV SP
The connector is disconnected (or
loose).
Correctly install. 1 Check whether the drive unit
connectors (CN3) or detector
connectors are disconnected.
The connector is not disconnected. Investigate item 2.
{
The cables are wired near each
other. (Noise is entering from the
power cable.)
Improve the cable wiring. 2 Is the detector cable wired in the
same conduit as the motor's power
cable or are the two cables laid in
parallel near each other?
The wires are sufficiently separated. Investigate item 3.
{
The motor FG wire is grounded on
the motor side.
Ground the motor to one point,
connecting the wires together on the
drive unit side.
3 Is the motor FG wire connected only
to the drive unit which drives it?
(Is the motor grounded to one point?)
The motor is grounded to one point. Investigate item 4.
{
There is a connection fault. Replace the detector cable. 4 Turn the power OFF, and check the
detector cable connection with a
tester. (Is the cable shielded?)
The connection is normal. Investigate item 5.
{
The alarm is on the drive unit side. Replace the drive unit. 5 Connect to another normal axis drive
unit, and check whether the fault is
on the drive unit side or detector side.
The alarm is on the detector side. Investigate item 6.
{
No abnormality is found in particular. Replace the detector.
(With the absolute position system,
the zero point must be established.)
6 Check if there is any abnormality in
the detector'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.
20
Motor side detector, No signal 1
A PLG Z-phase no signal was detected.
An error was detected in the A/B phase output waveform during PLG automatic adjustment.
Investigation details Investigation results Remedies SV SP
The connector is disconnected (or
loose).
Correctly install. 1 Check whether the drive unit
connectors (CN5) or detector
connectors are disconnected.
The connector is not disconnected. Investigate item 2.
{
There is a connection fault. Replace the detector cable. 2 Turn the power OFF, and check the
detector cable connection with a
tester.
The connection is normal. Investigate item 3.
{
The alarm occurred during PLG
automatic adjustment.
Investigate item 4. 3 Check whether the alarm occurred
during PLG automatic adjustment.
The alarm occurred during normal
operation.
Investigate item 5.
{
There is a problem. (The A/B phase
input voltage is 0.8V or less or 2.2V
or higher.)
Adjust the PLG output waveform. 4 Check the PLG output waveform (A/B
phase).
Normal Investigate item 6.
{
There is a problem. (The output
waveform is 0V even after the gears'
Z-phase is passed.)
Investigate item 7. 5 Check the PLG output waveform
(Z-phase).
Normal Investigate item 6.
{
Occurs each time. Replace the drive unit. 6 Check the occurrence frequency.
Occurs occasionally. Check whether the cable is
disconnected, whether there is a
contact fault, or a detector fault.
{
No abnormality is found in particular. Replace the PLG detector. 7 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 measures according to the error
cause.
Cable disconnection, contact fault.
The sensor is hot during high-load
operation.
Review the operation, and adjust
the Z-phase again.
{
6. Troubleshooting
6 - 15
Alarm No.
21
Machine side detector, No signal 2
The pulse-type linear scale or ball screw end detector's ABZ-phase no signal was detected with the
servo, or the encoder no-signal was detected with the spindle.
Investigation details Investigation results Remedies SV SP
The value is not set correctly. Correctly set SV025. 1 Check the servo parameter (SV025.
pen) setting value.
Are the pulse-type detector
parameters set for a serial
communication type detector?
The value is set correctly. Investigate item 3.
{
Encoder orientation is not used. Set SP037/bit0 t o 0. 2 Check the spindle parameter
(SP037/bit0) settings.
Encoder orientation is used. Investigate item 3.
{
The connector is disconnected (or
loose).
Correctly install. 3 Check whether the drive unit
connectors (servo: CN3, spindle:
CN6) or detector connectors are
disconnected.
The connector is not disconnected. Investigate item 4.
{ {
There is a connection fault. Replace the detector cable. 4 Turn the power OFF, and check the
detector cable connection with a
tester.
The connection is normal. Investigate item 5.
{ {
The alarm is on the drive unit side. Replace the drive unit. 5 Connect to another normal axis drive
unit, and check whether the fault is
on the drive unit side or detector side.
The alarm is on the detector side. Investigate item 6.
{ {
No abnormality is found in particular. Replace the detector.
(With the absolute position system,
the zero point must be established.)
6 Check if there is any abnormality in
the detector'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.
23
Excessive speed deflection 1
A difference of 50r/min or more between the speed command and speed feedback continued for longer
than the set time.
Investigation details Investigation results Remedies SV SP
The wires are not correctly
connected.
Correctly connect. 1 Check the U, V and W wiring
between the spindle drive unit and
spindle motor.
The wires are correctly connected. Investigate item 2.
{
The correct values are not set. Correctly set. 2 Check the settings for SP034,
SP040, SP055, and SP257 to
SP384.
The correct values are set. Investigate item 3.
{
12 seconds or more. Increase the SP055 setting value. 3 Measure the acceleration/
deceleration time constants.
Measure the time required to reach
the reverse run maximum speed from
the forward run maximum speed.
Less than 12 seconds. Investigate item 4.
{
120% or more. Reduce the load. 4 Measure the load during cutting.
Less than 120%. Investigate item 5.
{
There is a problem. Adjust the PLG output waveform. 5 Check the PLG output waveform.
Normal. Replace the drive unit.
{
6. Troubleshooting
6 - 16
Alarm No.
25
Absolute position lost
The backup voltage in the absolute position detector dropped causing the absolute position to be lost.
Investigation details Investigation results Remedies SV SP
The warning is occurring. Investigate item 2. 1 Is warning 9F occurring at the same
time?
The warning is not occurring. Investigate item 3.
{
3V or less. Replace the battery, and establish the
zero point.
2 Measure the battery voltage with a
tester.
3V or more. Check the NC bus cable connection.
{
Alarm 18 occurred. Turn the drive unit control power ON
again, and establish the zero point.
3 Did alarm 18 occur when the power
was turned ON the last time?
Alarm 18 did not occur. Investigate item 4.
{
The unit was left for a long time.
Guide at delivery : 20 hours or more
After 5 years : 10 hours or more
Turn the drive unit control power ON
again, and establish the zero point.
4 Was the detector cable or battery
cable disconnected from the unit for a
long time?
The cables were not disconnected. Investigate item 5.
{
The connection is faulty. Replace the cable. 5 Check the detector cable or battery
cable connection with a tester.
The connection is normal. Replace the drive unit.
{
Alarm No.
26
Unusable axis error
A power module error is occurring with the axis for which the axis No. selection switch is set to "F" (not
used axis).
Investigation details Investigation results Remedies SV SP
No abnormality is found in particular. Replace the drive unit. 1 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.
27
Machine side detector, CPU error 2
A CPU error was detected with the linear scale.
Investigation details Investigation results Remedies SV SP
1 Check the alarm No. "1B" items.
{
Alarm No.
28
Machine side detector, overspeed
A speed exceeding the specified maximum speed was detected with the linear scale.
Investigation details Investigation results Remedies SV SP
The rapid traverse rate is higher than
the specified value.
Use within the specified range. 1 Check the linear scale's maximum
speed.
The rapid traverse rate is less than
the specified value.
Investigate item 2.
{
No abnormality is found in particular. Replace the linear scale. 2 Check if there is any abnormality in
the detector'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.
29
Machine side detector, absolute position data error
An error was detected in the absolute position data detection circuit with the linear scale.
Investigation details Investigation results Remedies SV SP
1 Check the alarm No. "1B" items.
{
Alarm No.
2A
Machine side detector, incremental position data error
An error was detected in the relative position data detection circuit with the linear scale.
Investigation details Investigation results Remedies SV SP
1 Check the alarm No. "1B" items.
{