bnp-b2365(eng)b.pdf - 第328页

6. Troubleshooting 6 - 23 Alarm No. 3F S peed excessive deflection 2 During constant speed operation, the differ ence between the speed command and speed feedback exceeded the set amount and set time. Investigation det a…

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6. Troubleshooting
6 - 22
Alarm No.
3D
Spindle speed lock
Even when the maximum torque was commanded, the motor speed does not increase to 45r/min or
more.
Investigation details Investigation results Remedies SV SP
Occurs immediately after power is
turned ON.
Investigate item 2. 1 Does the alarm occur immediately
after the power is turned ON?
Occurs after normal operation. Investigate item 5.
{
There is abnormal noise. Investigate item 4.
(The initial pole estimate may be
incorrect.)
2 Is there any abnormal noise when
starting?
There is no abnormal noise. Investigate item 3.
{
The voltage is not supplied. Correctly supply the PN voltage. 3 Check that the PN voltage is supplied
to the drive unit.
• Is the CHARGE lamp ON?
Approx. 300V is correctly supplied. Investigate item 3.
{
The connections are incorrect. Connect correctly. 4 Check the motor power cable (U, V,
W phases). (Also check the operation
immediately after emergency stop is
cancelled.)
• The power cable is not connected.
• Is the cable connected to the motor
for another axis?
• Is the contactor between the drive
unit and motor OFF?
(When using coil changeover
specifications.)
The connections are correct. Investigate item 5.
{
The cutting load is large. Lower the cutting load. 5 Check the load value with the spindle
monitor, and investigate the
machine's load state.
The cutting load is not large. Investigate item 6.
{
Locked with a mechanical lock. Remove the cause of the lock. 6 Check whether the spindle rotary
section is locked with a mechanical
lock (C-axis clamp, etc.).
Not locked with a mechanical lock. Investigate item 7.
{
Improved. Replace the drive unit. 7 Try replacing the drive unit.
Not improved. Investigate the motor.
(Check the motor type and
parameters.)
{
Alarm No.
3E
Spindle speed overrun
1. A state in which the motor's speed feedback exceeded the speed command and accelerated was
detected.
2. Even though the speed command is 0 (including when stopped during position control), motor
rotation exceeding the parameter setting value was detected.
Investigation details Investigation results Remedies SV SP
Occurs immediately after power is
turned ON.
Investigate item 2. 1 Does the alarm occur immediately
after the power is turned ON?
Occurs after normal operation. Investigate item 3.
{
The connections are incorrect. Connect correctly. 2 Check the motor power cable (U, V,
W phases). (Also check the operation
immediately after emergency stop is
cancelled.)
• The power cable is not connected.
• Is the cable connected to the motor
for another axis?
• Is the contactor between the drive
unit and motor OFF?
(When using coil changeover
specifications.)
The connections are correct. Investigate item 3.
{
Locked with a mechanical lock. Remove the cause of the lock. 3 Check whether the spindle rotary
section is locked with a mechanical
lock (C-axis clamp, etc.).
Not locked with a mechanical lock. Investigate item 4.
{
Improved. Replace the drive unit. 4 Try replacing the drive unit.
Not improved. Investigate the motor.
(Check the motor type and
parameters.)
{
6. Troubleshooting
6 - 23
Alarm No.
3F
Speed excessive deflection 2
During constant speed operation, the difference between the speed command and speed feedback
exceeded the set amount and set time.
Investigation details Investigation results Remedies SV SP
The cutting load is large. Lower the cutting load. 1 Check the load value with the spindle
monitor, and investigate the
machine's load state.
The cutting load is not large. Investigate item 2.
{
Locked with a mechanical lock. Remove the cause of the lock. 2 Check whether the spindle rotary
section is locked with a mechanical
lock (C-axis clamp, etc.).
Not locked with a mechanical lock. Investigate item 3.
{
Improved. Replace the drive unit. 3 Try replacing the drive unit.
Not improved. Investigate the motor.
(Check the motor type and
parameters.)
{
Alarm No.
40
Detector changeover unit, changeover error
During 1-drive unit 2-motor control, an error was detected in the motor changeover signal received form
the detector changeover unit.
Investigation details Investigation results Remedies SV SP
The connector is disconnected (or
loose).
Correctly install. 1 Wiggle the FR-TK unit connector by
hand to check whether it is
disconnected.
The connector is not disconnected. Investigate item 2.
{
The cable is broken. Replace the cable. 2 Check whether the cable connected
between the spindle drive unit and
FR-TK unit is broken.
The cable is not broken. 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.
41
Detector changeover unit, communication error
During 1-drive unit 2-motor control, an error was detected in the communication with t he detector
changeover unit.
Investigation details Investigation results Remedies SV SP
1 Check the alarm No. "40" items.
{
Alarm No.
42
Feedback error 1
With the servo, pulse-type position detector feedback signal error was detected. With the spindle, a
PLG feedback signal error was detected.
Investigation details Investigation results Remedies SV SP
The connector is disconnected (or
loose).
Correctly install. 1 Check whether the drive unit
connectors (servo: CN3, spindle:
CN6) 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 is on the drive unit side. Replace the drive unit. 3 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. Servo : Investigate item 5.
Spindle : Investigate item 4.
{ {
There is a problem. Adjust the PLG output waveform. 4 Check the PLG output waveform.
Normal Investigate item 5.
{
No abnormality is found in particular. Replace the detector.
(With the absolute position system,
the zero point must be established.)
5 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.
{ {
6. Troubleshooting
6 - 24
Alarm No.
43
Feedback error 2
With the servo, an excessive error was detected in the position data for the motor side detector and
machine side detector. With the spindle, an error was detected in the encoder feedback signal.
Investigation details Investigation results Remedies SV SP
The connector is disconnected (or
loose).
Correctly install. 1 Check whether the drive unit
connectors 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.
Connect 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.
44
C-axis changeover alarm
When using the coil changeover control motor, the mode was changed to C-axis control while the
high-speed coil was selected.
Investigation details Investigation results Remedies SV SP
High-speed coil is selected (bitD = 0) Correct the sequence. 1 Check the coil selected with the
spindle control input 3, bitD for the
C-axis control command.
Low-speed coil is selected (bitD= 1) Investigate item 2.
{
Coil changeover valid (SP034/bit2 =
1)
Correctly set the parameter. 2 Is coil changeover validated for the
special motor specifications?
Coil changeover invalid (SP034/bit2
= 0)
Replace the drive unit.
{