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Simplicity on the Worksite
2
Determining the Alarm Value
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)
Example: Alarm Value = 20
Alarm value:
20°C
Set point:
Alarm ON
100°C
120°C or higher
Example: Alarm Value = −20
Alarm value:
-20°C
Alarm ON
Set point:
80°C or higher
100°C
• Setting an Upper-limit Lower-limit Alarm (Alarm Type 1)
Example: Alarm upper limit = 30, alarm lower limit = 20
Alarm lower limit:
20°C
Alarm upper limit:
ON
Set point:
Alarm ON
100°C
80°C or lower
●Setting Absolute Temperatures
• Setting an Absolute-value Upper-limit Alarm
(Alarm Type 8)
The alarm output will turn ON when the alarm value
is exceeded regardless of the value of the set point.
Example: Alarm Value = 100
Alarm value:
100°C
0
*There is no upper-limit lower-limit alarm that can be set with absolute values.
ON
ON
30°C
ON
Alarm ON
130°C or higher
ON
Alarm ON
100°C or higher
Solutions Guide for FAQs: E5@N
Setting Temperature Alarms
• Setting a Lower-limit Alarm (Alarm Type 3)
Example: Alarm Value = 20
Alarm value:
20°C
ON
Alarm ON
Set point:
80°C or lower
100°C
Example: Alarm Value = −20
Alarm value:
ON
Set point:
Alarm ON
100°C
120°C or lower
• Setting an Absolute-value Lower-limit Alarm
(Alarm Type 9)
The alarm output will turn ON when the temperature
is below the alarm value regardless of the value of
the set point.
Example: Alarm Value = 100
Alarm value:
100°C
ON
0
-20°C
Alarm ON
100°C or lower
4-5
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