Chapter 3 Operation Order and Installation
(2) Fail safe measures in case of motion controller failures
Failures of the motio controller and memory are detected by self-diagnosis but if there are some problems with I/O control
part, etc, the failure may not be detected from the motion controller. In this case, it can be different depending on the
failure status, all contacts may be On or Off so normal operation or safety of the controlled subject cannot be guaranteed.
We have done our best to assure quality but in case there are some problems with the PLC, please configure the fail safe
circuit on the outside to prevent damage of the equipment or accident due to some cause. The below is the example of
system configuration with the fail sage circuit.
[Example of faile safe circuit]
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