7-4.Limit set
Limit set can be done 2 different upper limits (alarm) in the range of 4〜20mA(signal
level 0〜100%)
In case signal change gets severe however, chattering might rise often.
In such case you may be recommended to use integral function or delay function at/from
higher position (Customers expertise) respectively.
【Limit 1,2 and action chart of trouble alarm】
Limit output(upper limit alarm)
Trouble alarm
Power OFF to close COM-NO
20mA
4mA
COM-NO open
LED Off
Power OFF to open COM-NO
Fig.13. Operation chart(upper limit alarm)
Device normal
COM-NO open
LED off
Fig.14. Operation chart(Trouble alarm)
COM-NO close
LED On
Trouble
COM-NO close
LED on
- 10 -
Limit set value(ON)
Limit set value(OFF)
Time
COM-NO open
LED Off
Device normal
COM-NO open
LED off