bnp-b2365(eng)b.pdf - 第344页
6. Troubleshooting 6 - 39 Alarm No. 8C Encoder converter unit 2, judgment error A detector type outside the specificati ons was detected with the MDS-B-PJEX. Investigation det ails In vestigation results Remedies SV SP T…
6. Troubleshooting
6 - 38
Alarm No.
89
Encoder converter unit 2, connection error
With the servo, an error was detected in the connection with the analog output linear scale for the
MDS-B-HR unit. With the spindle, initial communication with the MDS-B-PJEX was not possible.
Investigation details Investigation results Remedies SV SP
The connector is disconnected (or
loose).
Correctly install. 1 Wiggle the MDS-B-HR/MDS-B-PJEX
unit connector (CON3) by hand to
check whether it is disconnected.
The connector is not disconnected. Servo
: Investigate item 2.
Spindle
: Investigate item 4.
{ {
The cable is broken. Replace the cable. 2 Check whether the cable between
the linear scale and MDS-B-HR is
broken.
The cable is not broken. Investigate item 3.
{
No abnormality is found in particular. Replace the MDS-B-HR 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.
{
The cable is broken. Replace the cable. 4 Check whether the cable between
the spindle drive unit and
MDS-B-PJEX is broken.
The cable is not broken. Investigate item 5.
{
No abnormality is found in particular. Replace the drive unit. 5 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.
8A
Detection converter unit 2, communication error
With the servo, an error was detected in the communication with the serial output linear scale for the
MDS-B-HR unit. With the spindle, an error was detected in the communication with the MDS-B-PJEX.
Investigation details Investigation results Remedies SV SP
1 Check the alarm No. "89" items.
{ {
Alarm No.
8B
Encoder converter unit 2, automatic adjustment error
An abnormal signal from the PLG was detected during automatic adjustment of the PLG.
Investigation details Investigation results Remedies SV SP
The connector is disconnected (or
loose).
Correctly install. 1 Check whether the MDS-B-PJEX
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.
{
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. 3 Check the PLG output waveform (A/B
phase).
Normal Investigate item 4.
{
Occurs each time. Replace the MDS-B-PJEX unit. 4 Check the occurrence frequency.
Occurs occasionally. Check whether the cable is
disconnected, whether there is a
contact fault, or a detector fault.
{
6. Troubleshooting
6 - 39
Alarm No.
8C
Encoder converter unit 2, judgment error
A detector type outside the specifications was detected with the MDS-B-PJEX.
Investigation details Investigation results Remedies SV SP
The setting was incorrect.
"4" : 128 pulses
"5" : 256 pulses
"6" : 512 pulses
"8" : 180 pulses
Set correctly according to the No. of
PLG gear teeth.
1 Check the spindle parameter SP042.
SP042: C-axis control detector range.
(Spindle end PLG No. of pulse
setting)
The setting is correct. Investigate item 2.
{
No abnormality is found in particular. Replace the MDS-B-PJEX. 2 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.
8D
Detection converter unit 2, CPU error
With the servo, a CPU error was detected with the MDS-B-HR unit. With the spindle, a CPU error was
detected with the MDS-B-PJEX unit.
Investigation details Investigation results Remedies SV SP
No abnormality is found in particular. Replace the detection converter unit.1 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.
8E
Detection converter unit 2, data error
A data error was detected with the MDS-B-HR unit.
Investigation details Investigation results Remedies SV SP
The cable is broken. Replace the cable. 1 Check whether the cable between
the linear scale and MDS-B-HR is
broken.
The cable is not broken. Investigate item 2.
{
No abnormality is found in particular. Investigate item 3. 2 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.
{
The state is improved. Replace the MDS-B-HR unit. 3 Try replacing the MDS-B-HR unit.
The state is not improved. Replace the linear scale.
{
6. Troubleshooting
6 - 40
6-3-3 Troubleshooting for each warning No.
Warning No.
90
Detector, initial communication error
Initial communication with the absolute position linear scale was not possible.
Investigation details Investigation results Remedies SV SP
The setting is incorrect. Correctly set SV025. 1 Check the servo parameter
(SV025.pen) setting.
The setting is correct. Investigate item 2.
{
The connector is disconnected
(loose).
Correctly install. 2 Check whether the drive unit
connector (CN3) and detector
connector are disconnected.
The connector is not disconnected. Investigate item 3.
{
The connection is faulty. Replace the detector cable (CN3
side).
3 Turn the power OFF, and check the
detector cable connection with a
tester.
The connection is normal. Investigate item 4.
{
No abnormality is found in particular. Replace the tool end detector.
(With the absolute position system,
the zero point must be established.)
4 Check if there is any abnormality in
the tool end 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.
{
Warning No.
91
Detector, communication error
An error was detected in the communication with the detector for the absolute position detection
system.
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.
{
Warning No.
92
Detector, protocol error
An error was detected in the data for the absolute position detection system.
Investigation details Investigation results Remedies SV SP
No abnormality is found in particular. Investigate item 2. 1 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.
{
Occurs frequently. Replace the detector. 2 Check the repeatability.
Is not repeated. Investigate item 1.
{ {