bnp-b2365(eng)b.pdf - 第316页

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 det ails In vestigation results Remedies SV SP 1 Chec…

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.

F+axis No.

Emergency stop

Not lit F1

F+axis No.

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.

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.

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.

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.

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.

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.

{

6. Troubleshooting

6 - 12

Alarm No.

A/D converter error

An error was detected in the A/D converter for current FB detection.

Investigation details Investigation results Remedies SV SP

1 The error is always repeated. Replace the drive unit.

Check the repeatability.

The state returns to normal once, but

occurs sometimes thereafter.

Investigate item 2.

{ {

2 No abnormality is found in particular. Replace the drive unit.

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.

Motor side detector, initial communication error

Initial communication with the motor end detector was not possible.

Investigation details Investigation results Remedies SV SP

The value is not set correctly. Correctly set SV025. 1 Check the servo parameter (SV025)

setting value.

OSE104: 0, OSA104: 1

Are all other set to 2?

(Excluding slave axis for

synchronous control)

The value is set correctly. Investigate item 2.

{

The connector is disconnected (or

loose).

Correctly install. 2 Check whether the drive unit

connectors (CN2) or detector

connectors are disconnected.

The connector is not disconnected. Investigate item 3.

{

There is a connection fault. Replace the detector cable. 3 Turn the power OFF, and check the

detector cable connection with a

tester.

The connection is normal. Investigate item 4.

{

The alarm is on the drive unit side. Replace the drive unit. 4 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 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.

{

Alarm No.

Synchronous control/detector communication error

Initial communication with the master axis motor end detector was not possible when the closed current

command synchronous control was set. Or, the communication was cut off.

Investigation details Investigation results Remedies SV SP

The connector is disconnected. Correctly connect. 1 Check whether the MDS-B-SD unit

CN2B connector is disconnected.

The connector is not disconnected. Investigate item 2.

{

The cable is disconnected or

incorrectly connected.

Replace the cable. 2 Check the continuity of the cable

between the MDS-B-SD unit CN2B

and the slave side drive unit CN3.

There is no abnormality in particular. Try replacing the drive unit or

MDS-B-SD unit.

{