Справочник Пользователя для Mitsubishi Electronics AJ65bt-r2
10 - 6
MELSEC-A
10 TROUBLESHOOTING
(3) The R2 L ERR. LED flickers
Cause
Remedy
The station No. or transmission
speed switch setting was
changed during normal
operation
speed switch setting was
changed during normal
operation
Return the setting to the previous station No. or transmission
speed, and then turn the power ON again or reset it.
If the L RUN LED does not turn ON after the power is turned
ON again, there may be a problem in the hardware. Contact
your nearest dealer or sales office.
speed, and then turn the power ON again or reset it.
If the L RUN LED does not turn ON after the power is turned
ON again, there may be a problem in the hardware. Contact
your nearest dealer or sales office.
The station No. or transmission
speed switch is faulty.
speed switch is faulty.
If the L ERR. LED starts to flicker even when the switch
setting has not been changed during operation, there may be
a problem in the hardware. Contact your nearest dealer or
sales office.
setting has not been changed during operation, there may be
a problem in the hardware. Contact your nearest dealer or
sales office.
(4) The R2 L ERR. LED turns ON
Cause
Remedy
An error occurred in the
communication between the
master station and R2.
communication between the
master station and R2.
Check the error code stored in the R2 buffer memory, and set
the correct data before turning the power ON again or
resetting it.
the correct data before turning the power ON again or
resetting it.
The setting switch is not set
within the range (station No. 0
or 65 or more, transmission
speed other than 0 to 4).
within the range (station No. 0
or 65 or more, transmission
speed other than 0 to 4).
Correctly set the setting switch, and then turn the power ON
again or reset it.
again or reset it.
The terminator is not
connected.
connected.
Check that the terminator is connected. If not connected,
connect one, and then turn the power ON again or reset it.
connect one, and then turn the power ON again or reset it.
The module or transmission
cable is being affected by noise.
cable is being affected by noise.
•
Ground (Class 3 grounding) both ends of the CC-Link
dedicated cable's shield wire via the SLD and FG of each
module.
dedicated cable's shield wire via the SLD and FG of each
module.
•
Securely ground the module's FG terminal.
•
Securely ground the pipe when piping and wiring.