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High limit alarm with standby
OFF
ON
SV
SV
OFF
ON
OFF
ON
OFF
ON
SV
Low limit alarm with standby
High/Low limits with standby
High/Low limits with standby independent
EVT1 hysteresis
EVT1 hysteresis
Alarm
action
Alarm
output
Alarm
action
Alarm
output
-EVT1 value
+EVT1 value
+EVT1 value
-EVT1 value
EVT1 hysteresis
EVT1 value
EVT1 value
SV
+ side
- side
EVT1 low limit value
EVT1 high limit value
EVT1 hysteresis
+ side
- side
• EVT1 value represent EVT1 alarm value, and EVT1 hysteresis represent EVT1 alarm hysteresis.
• EVT1 indicator lights when their output terminals 9 and 10 are closed (ON), and
turns off when their output terminals 9 and 10 are opened (OFF).
For EVT2 to EVT5, read “EVT2 to EVT5” for “EVT1”.
EVT2 output (terminals 7 and 8) (For A3 option, use terminals 8 and 10.)
EVT3 output (terminals 7 and 10)
EVT4 output (terminals 29 and 30)
EVT5 output (terminals 28 and 30)
• For the alarm types (High limit alarm, High/Low limits alarm, High/Low limits independent,
Process high alarm), the alarm is activated when the indication is overscale, and the
standby function is released for the alarms with standby function.
For the alarm types (Low limit alarm, High/Low limits alarm, High/Low limits independent,
Process low alarm), the alarm is activated when the indication is underscale, and the
standby function is released for the alarms with standby function.
When Alarm action De-energized is selected, the output ON/OFF status acts conversely to the
alarm action described above. (The Event indicator acts the same as the action Energized.)
Energized
De-energized
Event indicator
Lights
Lights
Event output
ON
OFF
: EVT1 output terminals 9 and 10 are closed (ON).
: EVT1 output terminals 9 and 10 are closed (ON) or opened (OFF).
: EVT1 output terminals 9 and 10 are opened (OFF).
: Alarm output is in standby.