Omron SYSMAC CJ1W-AD04U, Руководство по эксплуатации

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Supplementary Explanations of Functions Appendix B
Alarm Operation when Upper Limit Is Less Than Lower Limit
When setting the process value’s alarm set values, the high and low limit values can be set freely, regardless of
which value is larger.
Example: H < L
The alarm output operation is determined solely by the relative sizes of the input value (scaling value) and
alarm set values, as shown below.
H Limit Alarms
When the input value is greater than the alarm set value, the alarm output is turned ON.
L Limit Alarms
When the input value is less than the alarm set value, the alarm output is turned ON.
Alarm Output Operation when Falling Back from Alarm
Condition Before Alarm-ON Delay Time Elapses
If inputs fall back from the alarm-ON condition (including hysteresis) before the alarm-ON delay time has
elapsed, the alarm output will not turn ON.
ON
OFF
Low limit (L) set value
Hysteresis
Low limit (L) alarm output
High limit (H) set value
Time
Time
ON
OFF
High limit (H) alarm output
Time
ON
OFF
Set value
Alarm output
Time
Time
Alarm-ON delay time
Process value or rate-of-change value
Hysteresis
Falling back from ON condition
Will not turn ON