Omron E5CSV - Close in Alarm;Open in Alarm

4-5
Operations for
Applications
■ Close in
Alarm/Open in
Alarm
• When “close in alarm” is set, the status of the alarm function will be
output as is. When “open in alarm” is set, the status of the alarm
function will be reversed before being output.
• Close in alarm/open in alarm can be set separately for each alarm.
• Close in alarm/open in alarm are set in the “alarm 1 open in alarm”
parameter (initial setting level (4)), and in the “alarm 2 open in
alarm” parameter (initial setting level (5)).
• The default is 0 (close in alarm).
Alarm
function
Alarm output
function
Alarm
indicator
ON ON Lit Close in
alarm
OFF OFF Not lit
ON OFF Lit Open in
alarm
OFF ON Not lit
• The alarm outputs will turn OFF (i.e., the relay contacts will open)
when power is interrupted and for about two seconds after the
power is turned ON regardless of the close in alarm/open in alarm
setting.
● Summary of
Alarm Operation
The following figure summarizes the operation of alarms when the
alarm type is set to “lower-limit alarm with standby sequence” and
“close in alarm” is set.
PV
Alarm hysteresis
Time
ON
OFF
ON (closed)
OFF (open)
Alarm type: Lower-limit alarm with standby sequence
Alarm
value
Alarm
Output
Standby sequence
canceled
4.3 Alarm Functions