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No.EX##-OMY0004
16. Error codes
16.1. Module replacement following an error
Please contact SMC if error codes are indicated by the system which do not appear in:
●The tables below in this user manual
LED
The “LED” column specifies which local diagnostics LED indicates the error.
Acknowledgment and restart
For every error that occurs, first remove the cause of the error. If necessary, acknowledge the error.
WARNING: Hazardous machine state/unintentional machine startup
With the exception of a few special cases, the acknowledgment of an error can result in a hazardous
state as well as unintentional machine startup since the safe input is immediately returned to the
opertating state.
●Before acknowledging an error you must make sure that acknowledgment will not cause the machine
to switch to a hazardous state.
●When planning the machine or system, make sure that acknowledgment is only possible if the
danger zone is visible.
WARNING: Unintentional machine startup
Startup/restart following power up and when there is no longer a demand of the safety function can result
in unintentional machine startup.
●Please note that:
●The module starts up once the configuration and parameterization data record has been
downloaded successfully and internal testing has been completed without errors.
●A safety-related input is automatically reset to “1” when the safety function trigger is reset.
●If you do not want the machine to restart automatically, configure the safety logic accordingly.
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