bnp-b2365(eng)b.pdf - 第314页
6. Troubleshooting 6 - 9 6-2-2 List of warnings When a warning occurs, a warning No. will appear on the NC m o nitor screen and with the LEDs on the front of the drive unit. Check the warning No., and re move the cau se …
6. Troubleshooting
6 - 8
Drive unit alarm
No. Alar m name SV SP Alarm details Reset
7F Power reboot request
A mismatch in the program mode selection was detected. T urn the drive
unit power ON again.
PR
88 Watch dog
§ §
The system is not operating normally. AR
89 Detector 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.
PR
8A Encoder 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.
PR
8B Encoder converter unit 2 automatic
adjustment error
§
An abnormal signal from the PLG was detected during automatic
adjustment of the PLG.
PR
8C Encoder converter unit 2 judgment
error
§
A detector type not within the specifications was detected with the
MDS-B-PJEX.
PR
8D Encoder 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.
AR
8E Encoder converter unit 2 data error
§
A data error was detected with the MDS-B-HR unit. PR
(Note 1) Motor stopping method applied when self-axis dr ive unit alarm occurs is indicated in SV for servo and in SP for spindle.
(Note 2) Servo (SV) alarm stopping method
{: Deceleration control (when SV048, SV055 or SV056 is set)
§: Dynamic brake stop
: Initial error (while motor is stopped)
(Note 3) Spindle (SP) alarm stopping method
{: Deceleration control (when SP038/bit0=1 is set)
§: Coast to a stop
: Initial error (while motor is stopped)
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)