Omron NE1A Series - Function Block: Safety Gate Monitoring

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Command Reference: Function Blocks Section 6-5
Error Handling and Error Resetting
Timing Chart
When Set to Dual Channel Equivalent
6-5-5 Function Block: Safety Gate Monitoring
Diagram
Default Connections
General Description
The Safety Gate Monitoring function block monitors the status of a safety
gate. Safety gate status is monitored using an input signal from a safety door
switch or safety limit switch connected to the door.
The Output Enable signal will turn ON if the input from the switch being mon-
itored is active. The Output Enable signal will turn OFF if the input is inactive
or if an error is detected for the function block.
Error Behavior for error detection Resetting the error
condition Output
Enable
Fault
Present
Error output condition
Discrepancy
error
OFF
(safety
state)
ON Discrepancy
Error output:
ON
Remove the cause of the
error and then do the following:
1. Make the inputs inactive and
then active again.
2. Or change the NE1A-series
Controller's operating mode to
IDLE Mode and then back to
RUN Mode.
Idle to RUN Discrepancy time
Input1
(NC)
Output
Enable
Discrepancy
Error
Fault
Present
Input2
(NC)