7.2 Warnings Related to Communication and Commands
7.2.1 Communication Errors (COMM_ALM)
7-5
7
Detecting Alarm
s
/W
ar
ning
s
Related to Communication
s
or Command
s
7.2
Warnings Related to Communication and Commands
Warnings are divided into two categories, warnings related to data reception and procedures in
MECHATROLINK-III communications and warnings related to the validity of commands.
7.2.1
Communication Errors (COMM_ALM)
The table below shows the warnings related to procedures in MECHATROLINK-III communica-
tions.
When an error of this kind is detected, the warning code is displayed on the SERVOPACK as
well.
If any of these warnings occur, the relevant command will not be executed because the com-
mand data is not properly received. The operation of the servomotor continues. Therefore, the
response will be the same as that of the previous command.
If a warning A.96
occurs during the interpolation operation (INTERPOLATE), the interpolation
operation at the current feed speed continues within the communication cycle in which the
warning A.96
was detected.
7.2.2
Command Errors (CMD_ALM)
The table below shows the warnings related to the validity of commands.
When an error of this kind is detected, the warning code is displayed on the SERVOPACK as
well.
Category
Alarm in Response
SERVOPACK Side
COM-
M_ALM
Meaning
Remedy
Warning
Code
Warning Code Reset
Commu-
nica-
tions
Warning
2
Communication error
Check communication
connections.
Take countermeasures
against noise.
A.960
Necessary
1
FCS error
A.962
3
Synchronization frame not
received
A.963
Category
Alarm in Response
SERVOPACK Side
Remark
CMD_
ALM
Meaning
Remedy
Warning
Code
Warning
Code
Reset
Data
Setting
Warning
9
Parameter numbers or data
addresses are incorrect.
Review the content of
the command data
sent by the controller.
(Refer to the setting
conditions of each
command and
parameter.)
A.94A
Cleared
auto-
matically
The command
received on occur-
rence of the warning
will be ignored. The
servomotor contin-
ues its operation.
9
The data in the command is
invalid.
A.94b
9
The combination of data settings
is incorrect.
A.94C
9
The data size specified by the
command is incorrect.
The data is specified outside the
range for the relevant data.
A.94d
1
The data in the command is
beyond the limit.
It will be clamped at the limit
value.
A.97b
Cleared
auto-
matically
The command will be
executed with the
data clamped at the
limit value.
Continued on next page.