Omron NX1P2 series User Manual page 30

Precautions for Correct Use
Motion Control
• Use the system-defined variable in the user program to confirm that EtherCAT communications are
established before you attempt to execute motion control instructions. Motion control instructions are
not executed normally if EtherCAT communications are not established.
• Use the system-defined variables to monitor for errors in communications with the slaves that are
controlled by the motion control function module. Motion control instructions are not executed nor-
mally if an error occur in slave communications.
• Before you start an MC Test Run, make sure that the operation parameters are set correctly.
• Do not download motion control settings during an MC Test Run.
EtherCAT Communications
• If you need to disconnect the cable from an EtherCAT slave during operation, first disconnect the
software connection to the EtherCAT slave or disable the EtherCAT slave and all of the EtherCAT
slaves that are connected after it.
• Set the Servo Drives to stop operation if an error occurs in EtherCAT communications between the
Controller and a Servo Drive.
• Make sure that all of the slaves to be restored are participating in the network before you reset a Net-
work Configuration Verification Error, Process Data Communications Error, or Link OFF Error in the
EtherCAT Master Function Module. If any slave is not participating when any of these errors is reset,
the EtherCAT Master Function Module may access slave with a different node address than the
specified node address or the error may not be reset correctly.
• Always use the specified EtherCAT slave cables. If you use any other cable, the EtherCAT master or
the EtherCAT slaves may detect an error and one of the following may occur.
a) Continuous refreshing of process data communications will not be possible.
b) Continuous refreshing of process data communications will not end during the set cycle.
Battery Replacement
• Be sure to mount a Battery within two years of the production date shown on the Battery label.
• Turn ON the power after replacing the Battery for a CPU Unit that has been unused for a long time.
Leaving the CPU Unit unused again without turning ON the power even once after the Battery is
replaced may result in a shorter Battery life.
• If you use the Battery, use the CJ1W-BAT01 Battery Set which is sold separately.
SD Memory Cards
• Insert the SD Memory Card all the way.
• Do not turn OFF the power supply to the Controller during SD Memory Card access. The files may be
corrupted.
If there is a corrupted file in the SD Memory Card, the file is automatically deleted by the restoration
function when the power supply is turned ON.
• If you use an OMRON SD Memory Card, the end of the life of the SD Memory Card can be detected
in the following ways.
a) _Card1Deteriorated (SD Memory Card Life Warning Flag) system-defined variable
b) SD Memory Card Life Exceeded event in the event log
When the end of the life is detected in any of the above ways, replace the SD Memory Card.
28
NX-series NX1P2 CPU Unit Hardware User's Manual (W578)