Mitsubishi Electric MR-EM340GF User Manual page 4

[Design Precautions]
WARNING
● If a communication cable is disconnected, the network may be unstable, resulting in a communication
failure of multiple stations. Configure an interlock in the program to ensure that the entire system will
always operate safely even if communications fail. Failure to do so may result in an accident due to an
incorrect output or malfunction.
● To maintain the safety of the Simple Motion board against unauthorized access from external devices
via the network, take appropriate measures. To maintain the safety against unauthorized access via
the Internet, take measures such as installing a firewall.
● If safety standards (ex., robot safety rules, etc.,) apply to the system using the Simple Motion board,
servo amplifier and servomotor, make sure that the safety standards are satisfied.
● Construct a safety circuit externally of the Simple Motion board or servo amplifier if the abnormal
operation of the Simple Motion board or servo amplifier differs from the safety directive operation in
the system.
[Design Precautions]
CAUTION
● Do not install the control lines or communication cables together with the main circuit lines or power
cables. Keep a distance of 100 mm or more between them. Failure to do so may result in malfunction
due to noise.
● After the personal computer is powered on or rebooted, the time taken for the Simple Motion board to
enter the RUN status varies depending on the system configuration, parameter settings, and/or
program size. Design circuits so that the entire system will always operate safely, regardless of the
time.
● Do not power off or reboot the personal computer during the setting registration. Doing so will make
the data in the flash ROM undefined. The data need to be set in the buffer memory and to be written
to the flash ROM again. Doing so may cause malfunction or failure of the Simple Motion board.
[Installation Precautions]
WARNING
● Shut off the external power supply (all phases) used in the system before mounting or removing the
Simple Motion board to or from the personal computer. Failure to do so may result in electric shock or
cause the Simple Motion board to fail or malfunction.
● Do not touch any connectors while power is on. Doing so may cause electric shock or malfunction.
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