Omron CX-MOTION - 06-2008, Operation Manual

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Troubleshooting Section 15-1
• A communications error may occur in the servo driver after the MC Unit is
restarted. If this occurs, restore the power supply to the Servo driver and
the MC Unit
Error Messages and
Remedies
The following table shows the probable causes and remedies of messages
that may be displayed during online operations.
Message Probable cause Remedy
12289: No access right - Another tool is
occupying MCH. General or READ/
WRITE is not permitted The CX-Motion MCH tried to get the
access right to the MC Unit but
another process (tool) has the access
right. Wait until the other process releases
the access right. Or stop the other
process so that access will be
released.
35355: Communications to the device
could not be established or the connec-
tion has been broken. Check the commu-
nication settings and connection method
to the device 1. Communications between the
computer and the MC Unit have
been disconnected, or the MC Unit
power supply has been cut off.
2. Communications between the
computer and the servo drive timed
out.
1. Check the network setup and
check the power supply to the MC
Unit.
2. Increase the Response Timeout
Setting in the Network Settings of
the PLC.
32775: CX-Server has not been initialized
by the application The CX-Server is corrupted or might
not be installed. Check whether the CX-Server is
installed and try restarting the appli-
cation.
34845: CX-Server is currently processing
the maximum number of requests. This
error indicates the application is thrashing
the maximum possible communications
throughput of the device's connection The CX-Server is currently process-
ing the maximum number of requests.
The communications system is busy
and cannot handle any more
requests. Either stop some of the applications
or wait until processing for other appli-
cations has been completed.
8720: Operation mode of MC Unit is
wrong The operating mode is set to the
wrong mode.
Or the mode was changed by another
application, like the CX-Programmer,
while CX-Motion MCH was writing or
saving data.
Wait until the other application is fin-
ished and then retry the operation.
4364: Invalid data. Failed to transfer Parameter Read:
• No. of words read is zero.
• Beginning read address is for an
odd-numbered byte. (For system
parameter and position data, the
byte address is not a multiple of 4.)
• No. of read words is an odd number
of bytes. (For system parameter and
position data, the byte size is not a
multiple of 4.)
Parameter Write:
• The beginning write address or num-
ber of write words does not have the
correct access unit for the area.
• Command sequence error.
Program Write:
• Number of data in the program infor-
mation and the size of the program
transmitted do not match each other.
• There is no program information.
CAM Data Write:
• When writing the last frame, the
phase and displacement were not
written together.
• The number of data in the CAM
information and the size of the data
transmitted do not match each other.
Check the data for validity before
transfer.