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11 Troubleshooting
11-44
NJ-series CPU Unit Motion Control User’s Manual (W507)
Event name Auxiliary Axis Position Read Error Event code 743B0000 hex
Meaning The synchronized instruction was not executed because an error occurred in the position of the auxiliary axis of the
synchronized instruction.
Source Motion Control Function Module Source details Axis Detection
timing At or during
instruction execu-
tion
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation Operation is not possible for relevant slave axis. Relevant
slave axis decelerates to a stop if it is in motion.
System-defined
variables Variable Data type Name
_MC_AX[*].MFaultLvl.Active BOOL Axis Minor Fault Occurrence
Cause and
correction Assumed cause Correction Prevention
EtherCAT process data communica-
tions are not established for the auxil-
iary axis of the synchronized
instruction. If the _EC_PDSlavTbl (Process Data
Communicating Slave Table) system-
defined variable for the EtherCAT
master of the auxiliary axis is FALSE,
investigate the error in the auxiliary
axis and remove the cause.
If you execute synchronized instruc-
tions after you turn ON the power
supply, download data, or reset slave
communications error, make sure that
the
_EC_PDSlavTbl (Process Data
Communicating Slave Table) system-
defined variable for the EtherCAT
master is TRUE for the node of the
auxiliary axis before you execute the
synchronized instruction.
The slave of the auxiliary axis for the
synchronized instruction was discon-
nected. Check the slave of the auxiliary axis
and reconnect it if it was discon-
nected. Make sure that the slave of the auxil-
iary axis is not disconnected during
execution of a synchronized instruc-
tion.
An Absolute Encoder Current Position
Calculation Failed error (6458000
hex) was detected for the auxiliary
axis of a synchronized instruction. See if an Absolute Encoder Current
Position Calculation Failed error
(64580000 hex) occurred for the aux-
iliary axis and make suitable correc-
tions to restore operation. Do not use an axis with a Absolute
Encoder Current Position Calculation
Failed error (64580000 hex) as the
auxiliary axis in a synchronized
instruction.
Attached
information None
Precautions/
Remarks None
Event name EtherCAT Slave Communications Error Event code 84400000 hex
Meaning A communications error occurred for the EtherCAT slave that is allocated to an axis.
Source Motion Control Function Module Source details Axis Detection
timing Continuously
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation The Servo for the axis turns OFF.
System-defined
variables Variable Data type Name
_MC_AX[*].MFaultLvl.Active BOOL Axis Minor Fault Occurrence
Cause and
correction Assumed cause Correction Prevention
A communications error occurred for
the EtherCAT slave that is allocated to
an axis. Check the event log for the EtherCAT
error that occurred. Remove the
cause of the error and clear the rele-
vant error. None
Attached
information None
Precautions/
Remarks Even if this error is reset, the error in the EtherCAT Master Function Module is not reset. This error can be reset without
resetting the error in the EtherCAT Master Module, but the axis will still be disabled.