Omron E5 Z Series User Manual

64
Alarm Hysteresis Section 4-2
4-2-3 Close in Alarm/Open in Alarm
• When “close in alarm” is set, the status of the alarm output function will be
output as is. When “open in alarm” is set, the status of the alarm output
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 is set in the “alarm 1 open in alarm” to
“alarm 3 open in alarm” parameters (advanced function setting level).
• The default is n-o (close in alarm).
• When “alarm 1 open in alarm” (advanced function setting level) is set to
“open in alarm,” the heater burnout alarm and input error output are also
set to “open in alarm.”
• 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.
Parameters
Note * = 1 to 3
Setting Alarm output function Alarm output Alarm indicator
Close in alarm ON ON Lit
OFF OFF Not lit
Open in alarm ON OFF Lit
OFF ON Not lit
OFF
ON
PV
Alarm type: Lower-limit alarm with standby sequence
Alarm value
Alarm hysteresis
Time
Standby sequence
canceled
Alarm
Output
OFF
(
o
p
en
)
ON (closed)
Symbol Parameter: Level Description
alh*
rest
al*n
Alarm 1 to 3 hysteresis: Advanced function setting
level
Standby sequence: Advanced function setting level
Alarm 1 to 3 open in alarm: Advanced function setting
level
Alarm
Alarm
Alarm

Omron E5 Z Series Specifications

General

Brand	Omron
Model	E5 Z Series
Category	Temperature Controller
Language	English