Omron E5*N Series, Solutions Manual For Faqs

Page: 19 / 32

Simplicity on the Worksite
Solutions Guide for FAQs: E5
@
N
Setting Temperature Alarms
4-5
Setting T
empe
rature Alarms
What Value Is Set for an Alarm?
You set the temperature at which the alarm is output. There are two methods to set the temperature for
the alarm types selected on pages 4-3 and 4-4: a deviation or an absolute temperature. Either positive or
negative values can be set for the alarm value.
● Setting Deviations from the Set Point
•
Setting an Upper-limit Alarm (Alarm Type 2)
•
Setting a Lower-limit Alarm (Alarm Type 3)
Example: Alarm Value = 20 Example: Alarm Value = 20
Example: Alarm Value = − 20
Example: Alarm Value = − 20
• Setting an Upper-limit Lower-limit Alarm (Alarm Type 1)
Example: Alarm upper limit = 30, alarm lower limit = 20
● Setting Absolute Temperatures
•
Setting an Absolute-value Upper-limit Alarm
(Alarm Type 8)
• Setting an Absolute-value Lower-limit Alarm
(Alarm Type 9)
Example: Alarm Value = 100
Example: Alarm Value = 100
*There is no upper-limit lower-limit alarm that can be set with absolute values.
2
Determining the Alarm Value
Alarm value: 20 ° C
Set point:
100
°
C
Alarm ON
120
°
C or higher
ON ON
Alarm value: 20
°
C
Set point:
100
°
C
Alarm ON
80
°
C or lower
ON
Alarm value: -20
°
C
Set point:
100
° C
Alarm ON
80
°
C or higher
ON
Alarm value: -20 ° C
Set point:
100
°
C
Alarm ON
120
° C or lower
ON
ON
Alarm lower limit: 20 ° C
Set point:
100
°
C
Alarm ON
130
° C or higher
Alarm upper limit: 30 ° C
Alarm ON
80 ° C or lower
0
ON
Alarm value: 100
°
C
Alarm ON
100
°
C or higher
ON
0
Alarm value: 100 ° C
Alarm ON
100
°
C or lower
The alarm output will turn ON when the alarm value
is exceeded regardless of the value of the set point.
The alarm output will turn ON when the temperature
is below the alarm value regardless of the value of
the set point.