Mitsubishi Electric Melservo-J3 Series MR-J3-B, Instruction Manual

Page: 672 / 802

16 - 117
16. INDEXER POSITIONING OPERATION
Display Name Definition Cause Action
(Note 2)
Alarm
detailed
information
A8D
CC-Link
communication
error Normal
communication
with the
master station
cannot be
made.
1. The station number switch (STATION NO.) is
set to 0 or above 64.
Set the station number to
within the range of 1 to
64, and turn the power
on.
2. The baud rate switch (MODE) is set to other
than 0 to 4.
Set the baud rate switch
(MODE) to within the
range of 0 to 4.
3. The transmission status is abnormal. Reexamine the wiring.
4. Incorrect wiring of CC-Link twisted cable 1. Repair or change the
CC-Link twisted cable.
2. Connect the cable or
connector correctly.
5. CC-Link twisted cable faulty.
6. The CC-Link connector has come off.
7. The termination resistor is not connected. Connect the termination
resistor correctly.
8. Noise entered the CC-Link twisted cable.
9. The programmable controller CC-Link unit was
reset.
10. The manufacturer setting switch (SW2) was
changed.
Set the manufacturer
setting switch (SW2) to
the default setting (left).
A8E
Serial
communication
error Serial
communication
error occurred
between servo
amplifier and
communication
device
(e.g.personal
computer). 1. Communication cable fault.
(Open cable or short circuit).
Repair or change the
cable. 1, 2
2. Communication device (e.g. personal computer)
faulty.
Check the
communication setting of
the communication
device (e.g. personal
computer).
3. The character codes are incorrect. Check the character
codes. 4
4. Command is incorrect. Check the command. 8
5. Data No. is incorrect. Check the data No. 10
(Note 1)
888
Watchdog CPU, parts
faulty.
1. Faulty parts in the servo amplifier.
<Check method>
The alarm occurs even if power is switched on
after disconnection of all cables except the
control circuit power supply cables.
Change the servo
amplifier.
2. External noise caused the CPU in the servo
amplifier to misoperate.
1. Check if the
environment is
affected by the noise
of surrounding
electromagnetic valve,
magnetic contactor,
relay, etc.
2. Check the grounding
of the servo amplifier.
Note 1. At power-on, "888" appears instantaneously, but it is not an error.
2. To check the alarm detailed information, MR Configurator is required. The alarm detailed information can be checked with "Alarm
History" window displayed when you select the alarm/alarm history on MR Configurator.